突然、git fetch、push、pull、clone などのコマンドが機能しなくなります。まず、Visual Studio の Team Explorer 内で出てきたので、cmd、PowerShell、Git Bash を試しました。Git Bash のみが機能しています。Visual Studio、Git、Git Credential Manager の両方を再インストールしてみました。また、Windows のユーザー アカウントやさまざまな場所からキャッシュされたすべての資格情報を削除しました。資格情報ヘルパーも変更してみました。Powershell の出力は次のとおりです。
error: waitpid for git credential-manager get failed: No child processes
error: waitpid for git credential-manager store failed: No child processes
error: waitpid for git credential-manager store failed: No child processes
Visual Studio の出力は次のとおりです。
Fetching from origin
Error encountered while fetching: Git failed with a fatal error.
'credential-manager' appears to be a git command, but we were not
able to execute it. Maybe git-credential-manager is broken?
bash.exe: warning: could not find /tmp, please create!
'credential-store' appears to be a git command, but we were not
able to execute it. Maybe git-credential-store is broken?
bash.exe: warning: could not find /tmp, please create!
'credential-manager' appears to be a git command, but we were not
able to execute it. Maybe git-credential-manager is broken?
cannot spawn /c/program files (x86)/microsoft visual studio/2017/enterprise/common7/ide/commonextensions/microsoft/teamfoundation/team explorer/Git/mingw32/libexec/git-core/git-askpass.exe: No such file or directory could not read Password for 'https://xx@xxx.com': terminal prompts disabled
助言がありますか？