I have created a simple feature using the feature receiver class in sharepoint 2010+ VS 2010.
But i am not able to debug the activate and deactivate method .
These are the following steps which I am following:

1. Add a receiver class to feature.
2. Update the active deployment configuration to :No Activation
3. Build the solution in debug mode.
4. Drag an drop the assembly from BIN to GAC folder.
5. Deploy the solution.
6. IISReset
7. Debugger>>Attach to process >>w3wp
8.Activate the feature

Solution goes in debug mode but debugger did not stop at debugging point even then feature successfully triggered.
Please help..