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floweringmind's avatar

PHP Fatal error: Trait 'Illuminate\Console\DetectsApplicationNamespace' not found

I upgrade from Lavarel 6 to 7 and now I get this error:

Illuminate\Foundation\ComposerScripts::postAutoloadDump @php artisan package:discover --ansi PHP Fatal error: Trait 'Illuminate\Console\DetectsApplicationNamespace' not found in /home/development/oeqdev/vendor/laravel/telescope/src/Console/InstallCommand.php on line 11

Symfony\Component\ErrorHandler\Error\FatalError

Trait 'Illuminate\Console\DetectsApplicationNamespace' not found

at vendor/laravel/telescope/src/Console/InstallCommand.php:11 7| use Illuminate\Support\Str; 8| 9| class InstallCommand extends Command 10| {

11| use DetectsApplicationNamespace; 12| 13| /** 14| * The name and signature of the console command. 15| *

Whoops\Exception\ErrorException

Trait 'Illuminate\Console\DetectsApplicationNamespace' not found

at vendor/laravel/telescope/src/Console/InstallCommand.php:11 7| use Illuminate\Support\Str; 8| 9| class InstallCommand extends Command 10| {

11| use DetectsApplicationNamespace; 12| 13| /** 14| * The name and signature of the console command. 15| *

  +1 vendor frames 

2 [internal]:0 Whoops\Run::handleShutdown() Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 25

Does anyone have any idea how I fix this?

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5 replies
zmudzinski's avatar

This means that one (or more) yours' dependencies is using deprecated trait. For example it could be Telescope (or other Laravel package). To find what is using this trait try use:

grep -iRl Illuminate\Console\DetectsApplicationNamespace vendor

This command will search vendor folder to find given text

webservices-ca@outloook.com's avatar

I had the same issue. After an upgrade from 6 to 7 I ran php artisan --version to see if I was in fact upgraded to version 7.

My issue was with telescope.

...
Generating optimized autoload files
> Illuminate\Foundation\ComposerScripts::postAutoloadDump
> @php artisan package:discover --ansi
PHP Fatal error:  Trait 'Illuminate\Console\DetectsApplicationNamespace' not found in /var/www/html/.../vendor/laravel/telescope/src/Console/InstallCommand.php on line 11
...

I did a standard update via composer...

 composer require laravel/telescope
...
Package operations: 0 installs, 1 update, 0 removals
  - Updating laravel/telescope (v2.1.7 => v3.5.0): Downloading (100%)    
  - Removing laravel/telescope (v2.1.7)
  - Installing laravel/telescope (v3.5.0): Loading from cache
...

Then I checked the version once again...

 php artisan --version
Laravel Framework 7.12.0
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