git切换分支无法切换,从master分支切到dev分支

[tieyongjie]

报错如下:
{"status":"ok","message":"error","data":null,"error":"non-fast-forward update"}
{"status":"ok","message":"success","data":[{"type":"branch","name":"dev","full_name":"refs/heads/dev","hash":"0e9dd42cfb0a8178bea0ed12839fee4a37c9158d","timestamp":"2022-08-19T13:44:51+08:00"},{"type":"branch","name":"master","full_name":"refs/heads/master","hash":"f81eb03cbb85affadd6ca9ddd20ad9be95ab5f81","timestamp":"2022-08-19T10:39:35+08:00"}],"error":""}

[tieyongjie]

再在新建一个爬虫拉同一分支下的代码的时候无法拉取