RuntimeError: ERROR: 
Traceback (most recent call last): 
\xa0\xa0File "C:\Program Files\ChimeraX\bin\lib\site- 
packages\chimerax\core\toolshed\\__init__.py", line 338, in __init__ 
\xa0\xa0\xa0\xa0self.init_available_from_cache(logger) 
\xa0\xa0File "C:\Program Files\ChimeraX\bin\lib\site- 
packages\chimerax\core\toolshed\\__init__.py", line 445, in 
init_available_from_cache 
\xa0\xa0\xa0\xa0abc.load_from_cache() 
\xa0\xa0File "C:\Program Files\ChimeraX\bin\lib\site- 
packages\chimerax\core\toolshed\available.py", line 61, in load_from_cache 
\xa0\xa0\xa0\xa0b = _build_bundle(d) 
\xa0\xa0File "C:\Program Files\ChimeraX\bin\lib\site- 
packages\chimerax\core\toolshed\available.py", line 242, in _build_bundle 
\xa0\xa0\xa0\xa0keywords = _extract_extra_keywords(keywords) 
\xa0\xa0File "C:\Program Files\ChimeraX\bin\lib\site- 
packages\chimerax\core\toolshed\installed.py", line 270, in 
_extract_extra_keywords 
\xa0\xa0\xa0\xa0all_kwds = [k.strip() for k in kwds.split(',')] 
AttributeError: 'list' object has no attribute 'split' 


Looking in indexes: https://pypi.org/simple, https://cxtoolshed.rbvi.ucsf.edu/pypi/ 
Processing c:\users\fagec\downloads\chimerax_isolde-1.0b2-cp36-cp36m-win_amd64.whl 
Requirement already satisfied, skipping upgrade: ChimeraX-Core==0.8 in c:\program files\chimerax\bin\lib\site-packages (from ChimeraX-ISOLDE==1.0b2) (0.8) 
Requirement already satisfied, skipping upgrade: ChimeraX-Clipper>=0.3 in c:\users\fagec\appdata\local\ucsf\chimerax\0.8\site-packages (from ChimeraX-ISOLDE==1.0b2) (0.3) 
Requirement already satisfied, skipping upgrade: ChimeraX-Atomic>=0.7 in c:\program files\chimerax\bin\lib\site-packages (from ChimeraX-ISOLDE==1.0b2) (1.0) 
Requirement already satisfied, skipping upgrade: ChimeraX-UI>=1.0 in c:\program files\chimerax\bin\lib\site-packages (from ChimeraX-Atomic>=0.7->ChimeraX-ISOLDE==1.0b2) (1.0) 
Installing collected packages: ChimeraX-ISOLDE 
Found existing installation: chimerax-isolde 1.0b2 
Uninstalling chimerax-isolde-1.0b2: 
Successfully uninstalled chimerax-isolde-1.0b2 
Rolling back uninstall of chimerax-isolde 
Could not install packages due to an EnvironmentError: [WinError 5] Access is denied: 'C:\\Program Files\\ChimeraX\\bin\\Lib\\site-packages\\ChimeraX_ISOLDE-1.0b2.dist-info' 
Consider using the `--user` option or check the permissions. 

You are using pip version 18.1, however version 19.0.3 is available. 
You should consider upgrading via the 'python -m pip install --upgrade pip' command. 


File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\core\toolshed\__init__.py", line 872, in _run_pip
raise RuntimeError(s)

See log for complete Python traceback.