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<title>Troubleshooting — CodeIgniter 4.4.2 documentation</title>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/message.html">HTTP Messages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/request.html">Request Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/incomingrequest.html">IncomingRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/content_negotiation.html">Content Negotiation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/methodspoofing.html">HTTP Method Spoofing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/restful.html">RESTful Resource Handling</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../outgoing/index.html">Building Responses</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/response.html">HTTP Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/api_responses.html">API Response Trait</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/localization.html">Localization</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Working with Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/events.html">Database Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../models/index.html">Modeling Data</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../models/model.html">Using CodeIgniter's Model</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../models/entities.html">Using Entity Classes</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../dbmgmt/index.html">Managing Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/migration.html">Database Migrations</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/seeds.html">Database Seeding</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/db_commands.html">Database Commands</a></li>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Library Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/cookies.html">Cookies</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/curlrequest.html">CURLRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Service</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/files.html">Working with Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/file_collections.html">File Collections</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/honeypot.html">Honeypot Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/images.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/publisher.html">Publisher</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/throttler.html">Throttler</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/time.html">Times and Dates</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uploaded_files.html">Working with Uploaded Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">Working with URIs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/validation.html">Validation</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/filesystem_helper.html">Filesystem Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/test_helper.html">Test Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../testing/index.html">Testing</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../testing/overview.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/database.html">Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/fabricator.html">Generating Data</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/controllers.html">Controller Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/feature.html">HTTP Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/response.html">Testing Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/benchmark.html">Benchmarking</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/debugging.html">Debugging Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/mocking.html">Mocking</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../cli/index.html">Command Line Usage</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_overview.html">CLI Overview</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_controllers.html">Running Controllers via CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/spark_commands.html">Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_commands.html">Creating Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_generators.html">CLI Generators</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_library.html">CLI Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_request.html">CLIRequest Class</a></li>
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</ul>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../extending/index.html">Extending CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../extending/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/common.html">Replacing Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/events.html">Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/basecontroller.html">Extending the Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/authentication.html">Authentication</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/composer_packages.html">Creating Composer Packages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/contributing.html">Contributing to CodeIgniter</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/official_packages.html">Official Packages</a></li>
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<a class="btn btn-neutral float-right" href="https://github.com/codeigniter4/CodeIgniter4/edit/develop/user_guide_src/source/installation/troubleshooting.rst">Edit this page</a>
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<div role="navigation" aria-label="Page navigation">
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<li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
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<li class="breadcrumb-item"><a href="index.html">Installation</a></li>
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<li class="breadcrumb-item active">Troubleshooting</li>
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<li class="wy-breadcrumbs-aside">
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<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
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<div itemprop="articleBody">
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<section id="troubleshooting">
|
||
<h1>Troubleshooting<a class="headerlink" href="#troubleshooting" title="Permalink to this headline"></a></h1>
|
||
<p>Here are some common installation problems, and suggested workarounds.</p>
|
||
<div class="contents local topic" id="contents">
|
||
<ul class="simple">
|
||
<li><p><a class="reference internal" href="#how-do-i-know-if-my-install-is-working" id="id1">How do I know if my install is working?</a></p></li>
|
||
<li><p><a class="reference internal" href="#i-have-to-include-index-php-in-my-url" id="id2">I have to include index.php in my URL</a></p></li>
|
||
<li><p><a class="reference internal" href="#only-the-default-page-loads" id="id3">Only the default page loads</a></p></li>
|
||
<li><p><a class="reference internal" href="#no-input-file-specified" id="id4">No input file specified</a></p></li>
|
||
<li><p><a class="reference internal" href="#my-app-works-fine-locally-but-not-on-the-production-server" id="id5">My app works fine locally but not on the production server</a></p></li>
|
||
<li><p><a class="reference internal" href="#the-tutorial-gives-404-errors-everywhere" id="id6">The tutorial gives 404 errors everywhere :(</a></p></li>
|
||
<li><p><a class="reference internal" href="#what-s-with-an-unhelpful-whoops-page" id="id7">What’s with an unhelpful “Whoops!” page?</a></p></li>
|
||
<li><p><a class="reference internal" href="#codeigniter-error-logs" id="id8">CodeIgniter Error Logs</a></p></li>
|
||
</ul>
|
||
</div>
|
||
<section id="how-do-i-know-if-my-install-is-working">
|
||
<h2><a class="toc-backref" href="#id1">How do I know if my install is working?</a><a class="headerlink" href="#how-do-i-know-if-my-install-is-working" title="Permalink to this headline"></a></h2>
|
||
<p>From the command line, at your project root:</p>
|
||
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">php spark serve</span>
|
||
</pre></div>
|
||
</div>
|
||
<p><code class="docutils literal notranslate"><span class="pre">http://localhost:8080</span></code> in your browser should then show the default
|
||
welcome page:</p>
|
||
<p><img alt="CodeIgniter4 Welcome" src="../_images/welcome.png" /></p>
|
||
</section>
|
||
<section id="i-have-to-include-index-php-in-my-url">
|
||
<h2><a class="toc-backref" href="#id2">I have to include index.php in my URL</a><a class="headerlink" href="#i-have-to-include-index-php-in-my-url" title="Permalink to this headline"></a></h2>
|
||
<p>If a URL like <code class="docutils literal notranslate"><span class="pre">/mypage/find/apple</span></code> doesn’t work, but the similar
|
||
URL <code class="docutils literal notranslate"><span class="pre">/index.php/mypage/find/apple</span></code> does, that sounds like your <strong>.htaccess</strong> rules
|
||
(for Apache) are not set up properly, or the <code class="docutils literal notranslate"><span class="pre">mod_rewrite</span></code> extension
|
||
in Apache’s <strong>httpd.conf</strong> is commented out.
|
||
See <a class="reference internal" href="../general/urls.html#urls-remove-index-php"><span class="std std-ref">Removing the index.php file</span></a>.</p>
|
||
</section>
|
||
<section id="only-the-default-page-loads">
|
||
<h2><a class="toc-backref" href="#id3">Only the default page loads</a><a class="headerlink" href="#only-the-default-page-loads" title="Permalink to this headline"></a></h2>
|
||
<p>If you find that no matter what you put in your URL only your default
|
||
page is loading, it might be that your server does not support the
|
||
REQUEST_URI variable needed to serve search-engine friendly URLs. As a
|
||
first step, open your <strong>app/Config/App.php</strong> file and look for
|
||
the URI Protocol information. It will recommend that you try a couple of
|
||
alternate settings. If it still doesn’t work after you’ve tried this
|
||
you’ll need to force CodeIgniter to add a question mark (<code class="docutils literal notranslate"><span class="pre">?</span></code>) to your URLs. To
|
||
do this open your <strong>app/Config/App.php</strong> file and change this:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">namespace</span> <span class="nx">Config</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Config\BaseConfig</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">App</span> <span class="k">extends</span> <span class="nx">BaseConfig</span>
|
||
<span class="p">{</span>
|
||
<span class="c1">// ...</span>
|
||
|
||
<span class="k">public</span> <span class="nx">string</span> <span class="nv">$indexPage</span> <span class="o">=</span> <span class="s1">'index.php'</span><span class="p">;</span>
|
||
|
||
<span class="c1">// ...</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>To this:</p>
|
||
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">namespace</span> <span class="nx">Config</span><span class="p">;</span>
|
||
|
||
<span class="k">use</span> <span class="nx">CodeIgniter\Config\BaseConfig</span><span class="p">;</span>
|
||
|
||
<span class="k">class</span> <span class="nc">App</span> <span class="k">extends</span> <span class="nx">BaseConfig</span>
|
||
<span class="p">{</span>
|
||
<span class="c1">// ...</span>
|
||
|
||
<span class="k">public</span> <span class="nx">string</span> <span class="nv">$indexPage</span> <span class="o">=</span> <span class="s1">'index.php?'</span><span class="p">;</span>
|
||
|
||
<span class="c1">// ...</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="no-input-file-specified">
|
||
<h2><a class="toc-backref" href="#id4">No input file specified</a><a class="headerlink" href="#no-input-file-specified" title="Permalink to this headline"></a></h2>
|
||
<p>If you see “No input file specified”, try to change the rewrite rule like the following (to add <code class="docutils literal notranslate"><span class="pre">?</span></code> after <code class="docutils literal notranslate"><span class="pre">index.php</span></code>):</p>
|
||
<div class="highlight-apache notranslate"><div class="highlight"><pre><span></span><span class="nb">RewriteRule</span><span class="w"> </span>^([\s\S]*)$<span class="w"> </span>index.php?/$1<span class="w"> </span>[L,NC,QSA]
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="my-app-works-fine-locally-but-not-on-the-production-server">
|
||
<h2><a class="toc-backref" href="#id5">My app works fine locally but not on the production server</a><a class="headerlink" href="#my-app-works-fine-locally-but-not-on-the-production-server" title="Permalink to this headline"></a></h2>
|
||
<p>Make sure that the case of the folder and file names matches the code.</p>
|
||
<p>Many developers develop on case-insensitive file systems on Windows or macOS.
|
||
However, most server environments use case-sensitive file systems.</p>
|
||
<p>For example, when you have <strong>app/Controllers/Product.php</strong>, you must use
|
||
<code class="docutils literal notranslate"><span class="pre">Product</span></code> as the short classname, not <code class="docutils literal notranslate"><span class="pre">product</span></code>.</p>
|
||
<p>If the file name case is incorrect, the file is not found on the server.</p>
|
||
</section>
|
||
<section id="the-tutorial-gives-404-errors-everywhere">
|
||
<h2><a class="toc-backref" href="#id6">The tutorial gives 404 errors everywhere :(</a><a class="headerlink" href="#the-tutorial-gives-404-errors-everywhere" title="Permalink to this headline"></a></h2>
|
||
<p>You can’t follow the tutorial using PHP’s built-in web server.
|
||
It doesn’t process the <strong>.htaccess</strong> file needed to route
|
||
requests properly.</p>
|
||
<p>The solution: use Apache to serve your site, or else the built-in
|
||
CodeIgniter equivalent, <code class="docutils literal notranslate"><span class="pre">php</span> <span class="pre">spark</span> <span class="pre">serve</span></code> from your project root.</p>
|
||
</section>
|
||
<section id="what-s-with-an-unhelpful-whoops-page">
|
||
<h2><a class="toc-backref" href="#id7">What’s with an unhelpful “Whoops!” page?</a><a class="headerlink" href="#what-s-with-an-unhelpful-whoops-page" title="Permalink to this headline"></a></h2>
|
||
<p>You find that your app is displaying a page with “Whoops!” and
|
||
then the text line “We seem to have hit a snag. Please try again later…”.</p>
|
||
<p>That is a sign that you are in production mode and have hit an
|
||
unrecoverable error, which we don’t want to show to the viewer of
|
||
the webapp, for better security.</p>
|
||
<p>You can see the error in the log file. See <a class="reference internal" href="#codeigniter-error-logs">CodeIgniter Error Logs</a> below.</p>
|
||
<p>If you reach this page while developing you should change your environment to
|
||
“development” (in <strong>.env</strong>). See <a class="reference internal" href="../tutorial/index.html#setting-development-mode"><span class="std std-ref">Setting Development Mode</span></a> for more details.
|
||
After that, reload the page. You will see the error and the back trace.</p>
|
||
</section>
|
||
<section id="codeigniter-error-logs">
|
||
<h2><a class="toc-backref" href="#id8">CodeIgniter Error Logs</a><a class="headerlink" href="#codeigniter-error-logs" title="Permalink to this headline"></a></h2>
|
||
<p>CodeIgniter logs error messages, according to the settings in <strong>app/Config/Logger.php</strong>.</p>
|
||
<p>You can adjust the error threshold to see more or fewer messages. See <a class="reference internal" href="../general/logging.html#logging-configuration"><span class="std std-ref">Logging</span></a> for details.</p>
|
||
<p>The default configuration has daily log files stored in <strong>writable/logs</strong>.
|
||
It would be a good idea to check them if things aren’t working the way you expect!</p>
|
||
</section>
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