Github desktop failed to sync this branch

Describes the cause and action for error messages.

Error Message(English)：
desktop failed to sync this branch

Resolution

GitHub - Failed to sync this branch
https://stackoverflow.com/questions/35375516/github-failed-to-sync-this-branch

Failed to sync github
https://stackoverflow.com/questions/32948804/failed-to-sync-github

GitHub Failed to sync this branch
https://stackoverflow.com/questions/22721688/github-failed-to-sync-this-branch

Github failed to sync branch
https://stackoverflow.com/questions/15082809/github-failed-to-sync-branch

GitHub for Windowsでsyncが失敗する - kiliwave
http://kiliwave.hatenablog.com/entry/2015/03/18/122800

GitHub Desktop for Windowsの"failed to sync this branch"の対処 - test.py
http://testpy.hatenablog.com/entry/2017/09/24/003000

GitHub Error: "Failed To Sync This Branch. You Might Need To Open A ...
https://www.youtube.com/watch?v=w2M5CAonYqY

https://www.youtube.com/watch?v=w2M5CAonYqY

github for Windowsでsyncする際にエラーが出たとき（2） | ハックノート
https://hacknote.jp/archives/1525/