xcodebuild failed

I think it's can be problem with scripts in xcode project.

In case when script did not exit with "exit 0" or any other.

But not sure.

I have resources 3000 files in my project.

export installable product takes too long, and sometimes terminates by server.

getting next

Bot Issue for CA Med (build service warning)
Integration #42 of CA Med
Open in Xcode: xcbot://(null)/botID/eb0e9457d096260ac013d6253601e742/integrationID/60e7fc8bd267faa05a2a62eaed02e905
Assertion: Creating installable product failed: xcodebuild exited with status 15.
File: (null):(null)