fatal: 'origin/dev' is not a commit and a branch 'dev' cannot be created from it

在git上把和別人合作的項目fork過來後，再clone分支到本地的時，通過git checkout -b dev origin/dev命令試圖創建本地分支，出現錯誤： fatal: 'origin/dev' is not a commit and a branch 'dev' cannot be created from it 找了網上很多發現原來沒有理解這句命令的含義  git checkou

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