WCF Web service not working

Question

Hi,

 

I created a WCF web service and added reference of 'Sample.DLL'.

 

Code build properly without error.

 

I got following error on accessing web service URL:

 

Could not load file or assembly 'Sample.DLL' or one of its dependencies. The specified module could not be found.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'Sample.DLL' or one of its dependencies. The specified module could not be found.