When a PDE build fails, the PDE process will exit with exit code 13 - this signals to the calling process that an error has occurred with the PDE build, and that the details of the error can be found inside the PDE build log file produced as part of the build. In the current pde-maven-plugin code, the error message returned to the user is simply that the build returned exit code 13 - the end user concludes from this error that the Eclipse PDE build process has crashed, when instead an error has occurred and logged to a logfile. The attached patch makes it clear in the error message that the end user should be looking for the cause of the error in the PDE build log.