Hello,

       This is the validation rule:

ISPICKVAL( $ObjectType.Agreement__c.Fields.Agreement_Motive__c ,'Location Changed').  Where Agreement_Motive__c is a picklist. I am currently working on Opportunity object. Unfortunately, I am faced with this error:

 Error: Incorrect parameter type for function 'ISPICKVAL()'. Expected Picklist, received Object.

Could you, please, help me with this issue?

I thank you.

Regards, 
Vijay.