Splunkd service wont start on Windows Server (handler/weak reference error)

[jospina2]

Has anyone encountered this error before? Our splunk instance is completely down.

08-10-2018 12:45:50.153 -0700 INFO loader - win-service: Starting as a Windows service: will run various system checks first...
08-10-2018 12:45:50.169 -0700 INFO loader - win-service: Splunk starting as a local administrator
08-10-2018 12:45:50.169 -0700 INFO loader - Automatic migration of modular inputs
08-10-2018 12:45:52.794 -0700 ERROR loader - win-service: Error running pre-flight-checks (pclose returned 1).
08-10-2018 12:45:52.794 -0700 ERROR loader - win-service: Here is the output from running pre-flight-checks:
08-10-2018 12:45:52.794 -0700 ERROR loader - Checking critical directories... Done
08-10-2018 12:45:52.794 -0700 ERROR loader - Checking indexes...
08-10-2018 12:45:52.794 -0700 ERROR loader - Validated: _audit _internal _introspection _telemetry _thefishbucket add_on_builder_index history iis_logs main perfmon registry summary windows wineventlog
08-10-2018 12:45:52.794 -0700 ERROR loader - Done
08-10-2018 12:45:52.794 -0700 ERROR loader - Traceback (most recent call last):
08-10-2018 12:45:52.794 -0700 ERROR loader - File "C:\Program Files\Splunk\Python-2.7\Lib\site-packages\splunk\clilib\cli.py", line 11, in
08-10-2018 12:45:52.794 -0700 ERROR loader - import logging as logger
08-10-2018 12:45:52.794 -0700 ERROR loader - File "C:\Program Files\Splunk\Python-2.7\Lib\logging__init_.py", line 618, in
08-10-2018 12:45:52.794 -0700 ERROR loader - _handlers = weakref.WeakValueDictionary() #map of handler names to handlers
08-10-2018 12:45:52.794 -0700 ERROR loader - AttributeError: 'module' object has no attribute 'WeakValueDictionary'
08-10-2018 12:45:52.794 -0700 ERROR loader - <<<<< EOF (pre-flight-checks)

[jospina2]

To resolve this issue I deleted the Entire Python27 folder from Program Files/Splunk

Then I copy & pasted a Python27 folder that has never been modified, and that one worked

so the python files may have been corrupted

[SGun]

Worked fine, thanks