Unable to install breakpoint due to missing line number attribute [duplicate]

Question

When i put breakpoint it show given error:

Unable to install breakpoint due to missing line number attribute

I tried most of the option found on stackoverflow still same issue.

Now same error shows still debugging works fine. Why this error come?

Answer 1

If the source code of the class is in a Java project and compiled by Eclipse, do the following:

1. Right-click on the project that contains the code and choose Properties...
2. In Java Compiler check Add line number attributes to generated class files (used by the debugger)