Debugging Android in Eclipse; What cause Source not found error

Question

When opening another activity, this error comes:

Class File Editor

Source not found

The source attachment does not contain the source file View.class

I tried so many solution that were provided here and this one also http://www.youtube.com/watch?v=IdIZ7r2d4J4

How to fix this ?

Answer 1

I follow the steps of this answer and it works :)

Thank you everyone.