After git creates a branch and switches to the branch, the contents of the main branch are modified. Why can't it be pushed?

Question

Answer 1

There is an information prompt on your screenshot,

may conflict with your remote branch, so please update.

Answer 2

You need to merge conflicts first and then submit.

Answer 3

Maybe your branch is built locally and not on the server.

Answer 4

First of all, can you list the detailed error message? We can only see part of it now.
In addition, judging from the error messages I can see, your error is probably because the local submission lags behind the remote submission. If this is the case, it is recommended to pull the remote submission first (git pull ) down, and then push again (git push).