为什么Netbeans Ant使用正确的jar编译但使用旧jar构建？

I have a project "A" that has another project "B" in it's libraries. Netbeans compiles project "A" and says there are no errors but when I go to clean and build project "A" goes to an old version of project "B". I have cleaned and built project "B" and then cleaned and build project "A" but "A" still fails thinking it is using the old "B". I am trying to figure out why Netbeans' Ant is compiling with the correct Project "B"-dist/jar but is building with the old Project "B" jar. None of the other jars in "A"s library have "B" in their library.I have a project "A" that has another project "