Issue
A Java 7 project in NetBeans 8.0 which compiles and runs fine is not able to generate Javadoc pages without throwing the error Package packagename does not exist in reference to a supporting package which is part of another project.
This happens even though the current project includes the supporting project as a library, which can be seen by right-clicking on the current project and selecting Properties, then selecting the Libraries category on the left, and checking that the supporting project is listed under the Compile tab as one of the "Compile-time Libraries".
Solution
In NetBeans 8.0, with the current project open, go to the Run menu and then select Clean and Build Project (ProjectName) or use the keyboard shortcut Shift+F11.
Once the project has been cleaned out and rebuilt, then go to the Run menu and select Generate Javadoc (ProjectName). The generator should now be able to find the supporting project and the Javadoc pages should be generated without any errors about the existence of the required package.
Answered By - Bobulous
Answer Checked By - Clifford M. (JavaFixing Volunteer)
