whenever I use composer dump-autoload with laravel I get this error
Generating optimized autoload files
Illuminate\Foundation\ComposerScripts::postAutoloadDump @php artisan package:discover 'C:\Program' is not recognized as an internal or external command, operable program or batch file. Script @php artisan package:discover handling the post-autoload-dump event returned with error code 1
I think it has something to do with "environment variables"
so my paths
C:\ProgramData\Oracle\Java\javapath;
C:\Program Files\iis express\PHP\v7.0;
C:\WINDOWS\system32;
C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\WINDOWS\System32\WindowsPowerShell\v1.0\;
C:\Program Files (x86)\QuickTime\QTSystem\;
C:\xampp\php;
C:\ProgramData\ComposerSetup\bin;
C:\Android;C:\Windows\System32;
C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;
C:\ProgramFiles\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;
C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;
C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;
C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;
C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\;
C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;
C:\Users\ahmadz\AppData\Roaming\Composer\vendor\bin;
C:\Users\ahmadz\AppData\Local\Microsoft\WindowsApps;
C:\Program Files\Git\cmd;
C:\Program Files (x86)\Skype\Phone\;
C:\Program Files (x86)\Brackets\command;
C:\Program Files
odejs\;
C:\ProgramFiles\Microsoft SQL Server\130\Tools\Binn\;
C:\Program Files\dotnet\;
C:\Users\ahmadz\AppData\Roaming\Composer\vendor\bin;
C:\Users\ahmadz\AppData\Local\Microsoft\WindowsApps;
C:\xampp\php;
C:\Users\ahmadz\AppData\Roaming\Composer\vendor\bin\phpspec run;
C:\Users\ahmadz\AppData\Roaming
pm;
C:\Users\ahmadz\AppData\Roaming\Composer\vendor\bin\kahlan
With Paul Santos answer you will only update all global packages. To update your composer installation you need to use
composer selfupdate
You're composer might be outdated. Try running this script in your terminal
composer global update
Then run composer update in your project folder.