Partial classes under same namespace

Question

Can someone please help me here as i am doing following things for this.

 

I have total two assemblies in my project named as "PracticeTest" and "ClassLibrary3" .

 

PracticeTest assembly has namespace "PracticeTest" and the very same namespace has been used in another assembly"ClassLibrary3".

 

I have a class "Test" under the namespace "PracticeTest" of first assembly"" and need to have another definition of this class "Test" in other assembly "ClassLibrary3" but using the same namespace.

 

I have used partial key word as " public partial class Test" for both of them.

 

Also have done "Add reference" process for my current assembly"PracticeTest" which is executable assembly.

  

But I am unable to use another definition of this class and getting a warning message like below