An error occured when I try to run the script Run_build.sh.
I have modified the myDevEnv.sh file, with my own Java_Home Directory and Compiere_Home Directory. But nothing else has been modified.
Here is the error:

/home/user/workspace/compiere-all2/utils_dev/build.xml:31: The following error occured while executing this line
/home/user/workspace/compiere-all2/ad/build.xml:56 Compile failed; see the compiler error output for details

The both error refer when it tries to compile the AD

The stack show that it "doesn't find a symbol" , referring to the class POExtended, but I havn't modified anything. And this class is right where it is supposed to be.

I hope someone can help me.