Eclipse Problems View doesn't show Errors

Question

[Note: There is another thread about this problem but it did not answer the question.]

For one specific project in Eclipse, the problems view does not show errors. I

Answer 1

I checked the .classpath file of the Eclipse project. It had incorrect value of src so it was pointing to the wrong source of Java files.

My files incorrect entry:

I changed it to the correct entry:

Now it is working.