UserInterfaceState.xcuserstate没法被忽略

1、git status

$ git status
On branch mx
Your branch is ahead of 'origin/mx' by 1 commit.
  (use "git push" to publish your local commits)

Untracked files:
  (use "git add <file>..." to include in what will be committed)

	xxx/xxx.xcworkspace/xcuserdata/vhall.xcuserdatad/UserInterfaceState.xcuserstate

nothing added to commit but untracked files present (use "git add" to track)

2、git rm 路径

$ git rm --cached xxx/xxx.xcworkspace/xcuserdata/vhall.xcuserdatad/UserInterfaceState.xcuserstate

3、git status

$ git status
On branch mx
Your branch is ahead of 'origin/mx' by 1 commit.
  (use "git push" to publish your local commits)

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

	new file:   VhallModuleUI_demo/VhallModuleUI_demo.xcworkspace/xcuserdata/vhall.xcuserdatad/UserInterfaceState.xcuserstate

4、git add

git add .

5、commit

…

6、pull push

…