How to set the custom error attribute in SharePoint server 2013

How to set the custom error attribute in SharePoint server 2013               

Check the below mentioned to set the custom error attribute to get the detailed error instead of “sorry something went wrong”

Every change you make in that config files have no effect on the web application. You have to go the web.config file that is generated once the web application is created.

So edit the web.config file in C:\inetpub\wwwroot\wss\VirtualDirectories\your port number and modify the parameters you have indicated in that web.config file

               1. custom Errors mode must be "Off"

               2. compilation debug must be "true"

               3. Safe Mode Call Stack must be "true"

The 'port number' is the port you assigned when you created the Web Application in the Central Administration

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