Error in Salesforce : Exception class must extend another Exception class at

Error in Salesforce : Exception class must extend another Exception class at

Issue:

While importing a WSDL to Salesforce for an integartion, I am getting error :

(Note: This same error will come if you are directly creating a class as well)

Exception class must extend another Exception class at
 

Root Cause: 

Salesforce does not allow you to create a Class with name ending “Exception”. Check if your class generated has a method with name ending Exception .

Resolution:

Rename the class name to not have a name ending with Exception. Example: if your class is generated/created as MyException , it will throw error. Use MyExcecptionClass instead.