Release Strategy

Hello Experts

I have designed releas strategy for Contract in Development environement. I have transported in Quality and created class and characteristics in Quality. While I am simulating release strategy in Quality I am getting classification error. I dont know same thing is working in Development but not working in Quality. Below is the error message I am getting while simulating.

Error in classification (class DUCT_TAPE_CONTR class type 032)

Message no. ME179

Procedure

Please check the specified class or class type in Customizing for the release procedure.

Thanks

Ankit