NOTE: Updating to Visual Studio 2017 15.5.7 or later should fix this. See #949 (comment)

I'm having some trouble logging on to GutHib to push new changes to my repository. I've just recently upgraded to Visual Studio 17. Everything used to work on VS 2015, but doesn't any longer.

• GitHub Extension for Visual Studio version: 2.2.0.8
• Visual Studio 2017 Professional: Ver 15.0.0+26228.9
• Windows 7 Pro SP1

Detailed steps:

• I have a local clone of a public (personal) repository. I've made changes to the local files
• Staged the changes.
• Attempted to push the changes.
• The GitHub login dialog appears. I've entered my username and password. I've confirmed that these are correct by logging in to the website.
• I get the following in my ouput pane on Visual Studio

Opening repositories:
### Local path, removed the actual path to anonymise ###
Error encountered while pushing to the remote repository: Git failed with a fatal error.
fatal: AggregateException encountered.
   One or more errors occurred.
error: cannot spawn askpass: No such file or directory
fatal: could not read Username for 'https://github.com': terminal prompts disabled
Pushing to https://github.com/### repo path ###.git

I have 2 factor enabled on my account.