System error. Program terminated.
: not a bzip2 file
  File "/usr/bin/pisi", line 84, in 
    cli.run_command()
  File "/usr/lib/pisilinux/pisi/cli/pisicli.py", line 144, in run_command
    self.command.run()
  File "/usr/lib/pisilinux/pisi/cli/build.py", line 182, in run
    pisi.api.build(x)
  File "/usr/lib/pisilinux/pisi/api.py", line 910, in build
    return pisi.atomicoperations.build(*args, **kw)
  File "/usr/lib/pisilinux/pisi/atomicoperations.py", line 701, in build
    return pisi.operations.build.build(package)
  File "/usr/lib/pisilinux/pisi/operations/build.py", line 1282, in build
    pb.build()
  File "/usr/lib/pisilinux/pisi/operations/build.py", line 341, in build
    self.unpack_source_archives()
  File "/usr/lib/pisilinux/pisi/operations/build.py", line 528, in unpack_source_archives
    self.sourceArchives.unpack(self.pkg_work_dir())
  File "/usr/lib/pisilinux/pisi/sourcearchive.py", line 41, in unpack
    self.sourceArchives[0].unpack(target_dir, clean_dir)
  File "/usr/lib/pisilinux/pisi/sourcearchive.py", line 130, in unpack
    archive.unpack(target_dir, clean_dir)
  File "/usr/lib/pisilinux/pisi/archive.py", line 785, in unpack
    self.archive.unpack(target_dir, clean_dir)
  File "/usr/lib/pisilinux/pisi/archive.py", line 269, in unpack
    self.unpack_dir(target_dir)
  File "/usr/lib/pisilinux/pisi/archive.py", line 287, in unpack_dir
    fileobj=self.fileobj)
  File "/usr/lib/python2.7/tarfile.py", line 1693, in open
    return func(name, filemode, fileobj, **kwargs)
  File "/usr/lib/python2.7/tarfile.py", line 1782, in bz2open
    raise ReadError("not a bzip2 file")