Cannot get Membership Provider with name RoleProvider. The membership provider for this process was not properly configured. You must configure the membership provider in the .config file for every SharePoint process.

I am trying to create a web application that uses AD LDS as its authentication provider. I have followed all the steps and verified all the web.config files, but I receive the error below:

Cannot get Membership Provider with name CustomRoleProvider. The membership provider for this process was not properly configured. You must configure the membership provider in the .config file for every SharePoint process.

Has anyone come across this error before?