Cannot sign in to TFS: Could not load type 'Microsoft.TeamFoundation.Common.TeamFoundationIdentityReference'

[timka3115]

Hello,

I entered valid login and password to our corporate TFS server (like I do for the VS 2015) and getting error.

Here is my logs:

2017-12-13T13:00:51.211Z - info: [09400] *** FOLDER: d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY ***
2017-12-13T13:00:51.214Z - info: [09400] VSTSVSCode/1.122.0 (VSCode 1.18.1; Windows_NT 6.3.9600; Node 7.9.0)
2017-12-13T13:00:51.215Z - debug: [09400] Looking for an External Context at d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY
2017-12-13T13:00:51.215Z - debug: [09400] No External Context at d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY
2017-12-13T13:00:51.219Z - debug: [09400] Looking for TFVC repository at d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY
2017-12-13T13:00:51.220Z - debug: [09400] TFVC Creating Tfvc object with localPath='undefined'
2017-12-13T13:00:51.221Z - debug: [09400] Using TFS proxy:
2017-12-13T13:00:51.221Z - debug: [09400] TFVC Retrieved from settings; localPath='C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\TF.exe'
2017-12-13T13:00:51.221Z - debug: [09400] TFVC Repository created with repositoryRootFolder='d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY'
2017-12-13T13:00:51.223Z - debug: [09400] TFVC Repository.CheckVersion
2017-12-13T13:00:51.224Z - debug: [09400] TFVC: tf add -noprompt -?
2017-12-13T13:00:51.230Z - debug: [09400] TFVC: spawned new process (duration: 5ms)
2017-12-13T13:00:51.237Z - debug: [09400] TFVC: spawned new process (duration: 6ms)
2017-12-13T13:00:51.625Z - debug: [09400] TFVC: add exit code: 0 (duration: 400ms)
2017-12-13T13:00:51.628Z - debug: [09400] TFVC Minimum required version: 14.102.0
2017-12-13T13:00:51.628Z - debug: [09400] TFVC (TF.exe, TF.cmd) version: 14.102.25619.0
2017-12-13T13:00:51.630Z - debug: [09400] TFVC Repository.FindWorkspace with localPath='d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY'
2017-12-13T13:00:51.631Z - debug: [09400] TFVC: tf workfold -noprompt ********
2017-12-13T13:00:51.634Z - debug: [09400] TFVC: spawned new process (duration: 3ms)
2017-12-13T13:00:52.164Z - debug: [09400] TFVC: workfold exit code: 0 (duration: 533ms)
2017-12-13T13:00:52.166Z - debug: [09400] Found a TFVC repository for url: 'http://tfs.ZZZZZZ.com:8080/tfs/defaultcollection' and team project: ''.
2017-12-13T13:00:52.171Z - debug: [09400] Parsing values from repositoryInfo as string url
2017-12-13T13:00:52.172Z - debug: [09400] TFVC Creating Tfvc object with localPath='undefined'
2017-12-13T13:00:52.173Z - debug: [09400] Using TFS proxy:
2017-12-13T13:00:52.173Z - debug: [09400] TFVC Retrieved from settings; localPath='C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\TF.exe'
2017-12-13T13:00:52.174Z - debug: [09400] TFVC Repository created with repositoryRootFolder='d:\Projects\XXXX project\DEV\XXXX\Release\XXXX 3.27.0\Source\Web\YYYY'
2017-12-13T13:00:52.244Z - debug: [09400] Started ApplicationInsights telemetry
2017-12-13T13:00:52.245Z - info: [09400] Getting repository information with repositoryInfoClient
2017-12-13T13:00:52.245Z - debug: [09400] RemoteUrl = http://tfs.ZZZZZZ.com:8080/tfs/defaultcollection
2017-12-13T13:00:52.247Z - debug: [09400] Getting repository information for a TFVC repository at http://tfs.ZZZZZZ.com:8080/tfs/defaultcollection
2017-12-13T13:00:52.248Z - debug: [09400] Parsing values from repositoryInfo as string url
2017-12-13T13:00:52.248Z - debug: [09400] Starting the validation of the collection. Url: 'http://tfs.ZZZZZZ.com:8080/tfs/defaultcollection'
2017-12-13T13:00:53.409Z - error: [09400] Failed Request: Internal Server Error(500) - Could not load type 'Microsoft.TeamFoundation.Common.TeamFoundationIdentityReference' from assembly 'Microsoft.TeamFoundation.Common, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Error: Error: Failed Request: Internal Server Error(500) - Could not load type 'Microsoft.TeamFoundation.Common.TeamFoundationIdentityReference' from assembly 'Microsoft.TeamFoundation.Common, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
2017-12-13T13:00:53.409Z - debug: [09400] Error: Failed Request: Internal Server Error(500) - Could not load type 'Microsoft.TeamFoundation.Common.TeamFoundationIdentityReference' from assembly 'Microsoft.TeamFoundation.Common, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

I have installed: Visual Studio 2015 Community Edition, Visual Studio Code. Operation system is Windows 8.1
I could provide any additional information by your request.

[timka3115]

Sorry, I found an issue. I tried to connect to TFS 2013, but this extension works well with VS 2015