Eclipse project not added to the build path

Question

I have Project A with a dependency on project B and project B with a dependency on project A. Project B compiles and runs and I can see in the properties of the debug that Project A is in the classpath. When I try to run Project A, I don't see Project B, or another third party external JAR library. The error I get is "java.lang.ClassNotFoundException". I have set Windows-Preferences-Building-Build Path Problems-Circular Dependencies to warnings, as recommended in another answer. This was working recently, although I had to reimport my projects for another reason and I can't get it to work now.

Answer 1

I tried a project the same way, didn't know about the cycle. To avoid this problem, as an alternative I created a maven project, with a parent pom, in which i declared the two seperate projects A and B as child projects. Then you can add the projects in the pom-file as dependencies. Maybe its a solution to your project, to use Maven as build tool.