Error map
Class "App\Models\X" not found Laravel: Error: Class "App\Models\Post" not found
Laravel · layer 4, Application & API
Centre: this error. First ring: errors it is linked with (10). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.
Directly related (10)
Laravel: Target class [App\Http\Controllers\X] does not exist.
Laravel’s container couldn’t find the controller or class named in a route or binding.
Laravel/PHP: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in vendor/laravel/framework
A request (or artisan job) used more memory than PHP's `memory_limit` allows.
Laravel/PHP: TypeError: App\Services\Mailer::send(): Argument #1 ($user) must be of type App\Models\User, null given
A function received a value of the wrong type — often `null` where an object was required.
Laravel Livewire: Livewire\Exceptions\ComponentNotFoundException: Unable to find component: [admin.users]
Livewire can't resolve a component alias to a class — wrong name, namespace or discovery.
Laravel: Illuminate\Auth\Access\AuthorizationException: This action is unauthorized.
A policy or gate denied the action for the current user, so Laravel returned HTTP 403.
Laravel: BadMethodCallException: Call to undefined method App\Models\Post::whereTitle() / Illuminate\Database\Eloquent\Builder::foo()
You called a method the model, builder or collection doesn't have.
Laravel: InvalidArgumentException: Unable to locate factory with name [default] [App\Models\Post] / Call to undefined method App\Models\Post::factory()
A seeder or test calls a model factory that is missing, or the model doesn't use the `HasFactory` trait.
Laravel: InvalidArgumentException: View [posts.index] not found.
Laravel can't find the Blade file for the view name you returned.
Laravel: Symfony\Component\Console\Exception\CommandNotFoundException: Command "make:livewire" is not defined. Did you mean one of these?
`php artisan` doesn't know the command you typed — typo, missing package or an unregistered service provider.
Laravel/PHP 8: ErrorException: Attempt to read property "name" on null
You accessed a property on a value that is `null`, typically an empty relationship or a query that found nothing.
Two steps away (23)
PHP Fatal error: Uncaught Error: Class "X" not found
PHP couldn’t load the class — autoloading failed, the namespace is wrong, or the dependency isn’t installed.
Laravel: No application encryption key has been specified.
Laravel’s APP_KEY is missing, so it can’t encrypt sessions and cookies.
Laravel: 419 Page Expired (CSRF token mismatch)
Laravel rejected a POST because the CSRF token was missing, expired or didn’t match the session.
PHP Fatal error: Allowed memory size of X bytes exhausted
The script tried to use more memory than PHP’s `memory_limit` allows.
Segmentation fault (core dumped)
A program accessed memory it wasn’t allowed to, and the kernel killed it with SIGSEGV (exit code 139).
Killed / Out of memory: Killed process (Linux OOM killer)
The kernel ran out of memory and killed a process to recover — the program just prints “Killed” (exit code 137).
Fatal error: Uncaught TypeError: foo(): Argument #1 ($x) must be of type int, string given
A function received a value of the wrong type for a typed parameter.
Warning: Array to string conversion
An array was used where a string is expected — echoing it, concatenating it, or passing it to a string function.
Fatal error: Uncaught Error: Cannot use object of type stdClass as array
Code used array syntax (`$x['key']`) on an object.
Laravel: InvalidArgumentException: Unable to locate a class or view for component [alert].
A `` Blade tag has no matching class or anonymous component view.
Laravel: ErrorException: Undefined variable $posts (View: /resources/views/posts/index.blade.php)
A Blade template uses a variable the controller didn't pass to the view.
Laravel: Illuminate\Database\Eloquent\ModelNotFoundException: No query results for model [App\Models\Post] 5
`findOrFail`, `firstOrFail` or route-model binding couldn't find a record, so Laravel returns a 404.
Laravel: Illuminate\Http\Exceptions\ThrottleRequestsException: Too Many Attempts. / 429 Too Many Requests
Laravel's rate limiter blocked the client for exceeding the allowed requests per minute.
Laravel: Illuminate\Database\Eloquent\MassAssignmentException: Add [x] to fillable property to allow mass assignment
You passed an array to create()/update()/fill() containing a field that isn’t in the model’s $fillable list.
Laravel Queue: Illuminate\Queue\SerializesModels: No query results for model [App\Models\Order] 42 (job failed)
A queued job serialised a model by ID, but the record was deleted before the worker ran it.
Laravel: Exception: Property [name] does not exist on this collection instance.
You treated a Collection (many results) as a single model.
Laravel Mix: Illuminate\Foundation\Exceptions\... The Mix manifest does not exist. (public/mix-manifest.json)
A view calls `mix('css/app.css')`, but the assets were never compiled so `public/mix-manifest.json` is missing.
Laravel: The stream or file "storage/logs/laravel.log" could not be opened in append mode: Failed to open stream: Permission denied
The web server can’t write to Laravel’s storage or bootstrap/cache directories.
Laravel: Vite manifest not found at: public/build/manifest.json
Laravel’s @vite directive can’t find the compiled asset manifest because assets weren’t built.
WP-CLI: Error: This does not seem to be a WordPress installation. Pass --path=`path/to/wordpress` or run `wp core download`
WP-CLI couldn’t find WordPress in the current directory (or the --path given).
Laravel: Expected response code "250" but got code "550", with message "550 5.7.1 Relaying denied"
Laravel connected and authenticated but the SMTP server rejected the message at the RCPT TO / MAIL FROM / DATA step with the code…
Laravel: SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'users' already exists
A migration tries to create a table that is already in the database.
Laravel Sanctum: {"message":"Unauthenticated."} 401 on API / SPA requests
A request to a `auth:sanctum` route had no valid token or session, so Laravel returned 401.
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