Unable to create a constant value of type 'System.Object'. Only primitive types or enumeration types are supported in this context."

Solution of the Error:

Unable to create a constant value of type 'System.Object'. Only primitive types or enumeration types are supported in this context."

If in LINQ query both variable Data Type is same then no any error throw LINQ Query.
But if the data type of the variable is different than LINQ Query throws error.
For example, if the One Variable Data Type is Int another is Nullable Int then throws the Error.

Now, for resolving the Error we can use the Following alternatives

 

1)     m=>m.id==id 

2)     m=>m.id.value.equals(id)


One of these works fine for the query






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