Hello 
I am using Solidworks 2020-2021 Student version, 
I have an assembly, I want to map the sketch of the Highlighted Plane in Image-2 to highlighted plane in Image-1, but when I am trying to do that It is showing me an error shown in Image-3. 
The procedure I am following is, Both the parts are in assembly and then I click on Body and select "Edit-Part" and then selecting the plane shown in Image-1 and selecting "Sketch" and then clicking on the plane Shown in image 2 and den clicking "Convert Entities".and then I am getting the error shown in Image-3. Am I doing something wrong? Can anyone kindly help? 

Thanks in advance.
#Solidworks #Sketch #ConverEntities #Assemblies