For the correct usage of eclipse

Sometimes we just modified the files in the project.

But when it starts it says you have nothing to declare

And that thing is clearly there.

At this point we can think of the actual project relationship file that is actually invoked with it (I suppose)

Different steps:

We can synchronize actual and engineering relationship files with clean function

So we have to clean it every time we change it to keep it in sync.

So that the organization can work properly

For the correct usage of eclipse