I need to copy a feature from one part file to a separate part. I assume that I should follow these following steps:
1. Select the sketch and press crtl + c.
2. Open the other part file.
3. Click anywhere in the graphics area and press crtl + v


But I got an error message after copying the feature, that is, "Can not complete the copy operation because some of the selected items can not be copied"!

So, I thought that my feature might be a little bit complicated. At this point, I copied a very simple one to see if it would work, but again I got the same error message!