catkin tools binary symlink collision md5 crash

gistfile1.txt

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/catkin_tools/execution/stages.py", line 174, in function_proxy
    return function(logger, event_queue, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/catkin_tools/jobs/catkin.py", line 291, in link_devel_products
    source_hash = md5(open(os.path.realpath(source_file)).read().encode('utf-8')).hexdigest()
UnicodeDecodeError: 'ascii' codec can't decode byte 0x97 in position 41: ordinal not in range(128)

Stage `symlink` failed with arguments:
  package: {'package_format': 2, 'exports': [], 'buildtool_export_depends': [], 'exec_depends': [<catkin_pkg.package.Dependency object at 0x7f4314a199b0>, <catkin_pkg.package.Dependency object at 0x7f4314a19a10>, <catkin_pkg.package.Dependency object at 0x7f4314a19a70>, <catkin_pkg.package.Dependency object at 0x7f4314a19ad0>, <catkin_pkg.package.Dependency object at 0x7f4314a19b30>, <catkin_pkg.package.Dependency object at 0x7f4314a19b90>, <catkin_pkg.package.Dependency object at 0x7f4314a19bf0>, <catkin_pkg.package.Dependency object at 0x7f4314a19c50>, <catkin_pkg.package.Dependency object at 0x7f4314a19cb0>, <catkin_pkg.package.Dependency object at 0x7f4314a19d10>], 'name': 'bwi_kr_execution', 'filename': '/home/nick/robocup_home_ws/src/villa_common/bwi_common/bwi_kr_execution/package.xml', 'replaces': [], 'version_abi': None, 'build_export_depends': [<catkin_pkg.package.Dependency object at 0x7f4314a19d70>, <catkin_pkg.package.Dependency object at 0x7f4314a19dd0>, <catkin_pkg.package.Dependency object at 0x7f4314a19e30>, <catkin_pkg.package.Dependency object at 0x7f4314a19e90>, <catkin_pkg.package.Dependency object at 0x7f4314a19ef0>, <catkin_pkg.package.Dependency object at 0x7f4314a19f50>, <catkin_pkg.package.Dependency object at 0x7f4314a19fb0>, <catkin_pkg.package.Dependency object at 0x7f43149a3050>, <catkin_pkg.package.Dependency object at 0x7f43149a30b0>], 'doc_depends': [], 'test_depends': [], 'maintainers': [<catkin_pkg.package.Person object at 0x7f4318d5da50>, <catkin_pkg.package.Person object at 0x7f4318d5df10>], 'version': '0.3.12', 'build_depends': [<catkin_pkg.package.Dependency object at 0x7f43149a3110>, <catkin_pkg.package.Dependency object at 0x7f43149a3170>, <catkin_pkg.package.Dependency object at 0x7f43149a31d0>, <catkin_pkg.package.Dependency object at 0x7f43149a3230>, <catkin_pkg.package.Dependency object at 0x7f43149a3290>, <catkin_pkg.package.Dependency object at 0x7f43149a32f0>, <catkin_pkg.package.Dependency object at 0x7f43149a3350>, <catkin_pkg.package.Dependency object at 0x7f43149a33b0>, <catkin_pkg.package.Dependency object at 0x7f43149a3410>, <catkin_pkg.package.Dependency object at 0x7f43149a3470>], 'urls': [<catkin_pkg.package.Url object at 0x7f4318e0f390>, <catkin_pkg.package.Url object at 0x7f4318e0f5d0>, <catkin_pkg.package.Url object at 0x7f4318e0fb90>], 'authors': [<catkin_pkg.package.Person object at 0x7f4318e0f750>, <catkin_pkg.package.Person object at 0x7f4318e0f450>], 'licenses': ['BSD'], 'buildtool_depends': [<catkin_pkg.package.Dependency object at 0x7f43149a34d0>], 'conflicts': [], 'description': u'Execution nodes for using the BWI Knowledge Representation.'}
  metadata_path: /home/nick/robocup_home_ws/.catkin_tools/profiles/default
  devel_manifest_path: /home/nick/robocup_home_ws/.catkin_tools/profiles/default/packages/bwi_kr_execution
  prebuild: False
  package_path: villa_common/bwi_common/bwi_kr_execution
  dest_devel_path: /home/nick/robocup_home_ws/devel_cb
  source_devel_path: /home/nick/robocup_home_ws/devel_cb/.private/bwi_kr_execution

Have you solved this issue? if yes please help

catkin/catkin_tools#399 will solve this.