remote: error: GH001: Large files detected. You may want to try Git Large File Storage - https://git

这部分适合一开始没有提交过的文件，如果一开始就已经commit过了，甚至开了很多分支的话，这部分不适合，跳到第二部分

Warning: These procedures will permanently remove files from the repository on your computer and GitHub. If the file is important, make a local backup copy in a directory outside of the repository.

If you added a file in an earlier commit, you need to remove it from your repository history. You can remove files from your repository history using either the BFG Repo-Cleaner or the git filter-branch command. For more information, see "Removing sensitive data from a repository."

Removing a file added in the most recent unpushed commit

If the file was added with your most recent commit, and you have not pushed to GitHub, you can delete the file and amend the commit:

1. Open TerminalTerminalGit Bashthe terminal.

2. Change the current working directory to your local repository.

3. To remove the file, enter git rm --cached:

   $ git rm --cached giant_file
   # Stage our giant file for removal, but leave it on disk

4. Commit this change using --amend -CHEAD:

   $ git commit --amend -CHEAD
   # Amend the previous commit with your change
   # Simply making a new commit won't work, as you need
   # to remove the file from the unpushed history as well

5. Push your commits to GitHub:

   $ git push
   # Push our rewritten, smaller commit

part2

https://help.github.com/en/articles/removing-sensitive-data-from-a-repository

$ git filter-branch --force --index-filter  'git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA'  --prune-empty --tag-name-filter cat -- --all

$ echo "YOUR-FILE-WITH-SENSITIVE-DATA" >> .gitignore
$ git add .gitignore
$ git commit -m "Add YOUR-FILE-WITH-SENSITIVE-DATA to .gitignore"

然后就可以愉快的提交了。