libproperties/1.1.2: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-3877@5\.conan\data\libproperties\1.1.2\_\_\build\963bb116781855de98dbb23aaac41621e5d312d8
ERROR: libproperties/1.1.2: Error in source() method, line 40
	os.rename(source_dir, self._source_subfolder)
	NameError: name 'os' is not defined