libproperties/1.1.2: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-3877\.conan\data\libproperties\1.1.2\_\_\build\df81ad20137149d7a51276fd3e24009b45e5964a
ERROR: libproperties/1.1.2: Error in source() method, line 40
	os.rename(source_dir, self._source_subfolder)
	NameError: name 'os' is not defined