Problem Statement While using the library provided by HubBox, there is an error occurring- require(C:\wamp64\www\HubBox\sample\src\public/../../vendor/autoload.php): failed to open stream: No such file or directory in C:\wamp64\www\HubBox\sample\src\public\index.php on line 14 Solution This error occurred because of dependencies on files that are missed. You need to solve this issue by using below steps: Step1: Delete the file sample/composer.lock from the library. Step2: Make a folder with the name “vendor” under /sample/ Step3: Run the command “composer install” in command prompt at /sample/ It will download all the dependency files which are required. After successfully downloading all the dependencies, you will able to use the HubBox library.