![I tried your use your code in my project. I installed it using composer successfully. However When I use it, the class "FFMpeg" was not found. Do you have an autoload file I tried your use your code in my project. I installed it using composer successfully. However When I use it, the class "FFMpeg" was not found. Do you have an autoload file](https://user-images.githubusercontent.com/25968500/31077860-23a93bb4-a74e-11e7-9604-784c00b2c572.png)
I tried your use your code in my project. I installed it using composer successfully. However When I use it, the class "FFMpeg" was not found. Do you have an autoload file
Use of __DIR__ in including vendor/autoload.php still best practice? · Issue #4259 · composer/composer · GitHub
Warning: require(vendor/autoload.php): failed to open stream: No such file or directory · Issue #11 · sendgrid/sendgrid-php-example · GitHub
![phpstan trigger a error if I load class by \Composer\Autoload\ClassLoader::addPsr4 · Issue #2162 · phpstan/phpstan · GitHub phpstan trigger a error if I load class by \Composer\Autoload\ClassLoader::addPsr4 · Issue #2162 · phpstan/phpstan · GitHub](https://user-images.githubusercontent.com/41610847/58689773-829d1880-83ba-11e9-863f-b4c1c9943342.png)
phpstan trigger a error if I load class by \Composer\Autoload\ClassLoader::addPsr4 · Issue #2162 · phpstan/phpstan · GitHub
![Laravel access error prompt: ` warning: require (/ vendor / autoload. PHP): failed to open stream: no such file or di solution | Develop Paper Laravel access error prompt: ` warning: require (/ vendor / autoload. PHP): failed to open stream: no such file or di solution | Develop Paper](https://imgs.developpaper.com/imgs/201942121750973.png)
Laravel access error prompt: ` warning: require (/ vendor / autoload. PHP): failed to open stream: no such file or di solution | Develop Paper
![Using Composer in your own PHP projects with your own Git packages/libraries – Life in apps, OSs and code! Using Composer in your own PHP projects with your own Git packages/libraries – Life in apps, OSs and code!](http://blog.bobbyallen.me/wp-content/uploads/2013/03/autoload_namespace.png)