I am not sure what I've set on my iTerm-zsh last night.

But after I open iTerm (zsh) or Terminal on my Mac or I try to use zsh, 
it will always show the following:

```
/Users/Simon/google-cloud-sdk/path.bash.inc:3: = not found`    
/Users/Simon/google-cloud-sdk/completion.bash.inc:18: command not found: complete
/Users/Simon/google-cloud-sdk/completion.bash.inc:29: parse error near `]]'

```

Any ideas that I can fix this ? Thanks in advance.