问题
I have an existing Firebase project that I am trying to import into the new Firebase 3.0 version that was just released at Google I/O 2016. Every time I try to import it, I keep getting this error with no helpful message on how to fix it or what the actual problem is.
回答1:
It Sometimes related to your extensions that you have added them before for example I had Enable Cross Origin * Extension and Firebase did nothing at all.
回答2:
Sorry you've had trouble! No open-and-shut answer here, but some things you can check:
- Firebase has been popular this week, so we've had a fair bit of load. Try importing the project again and see if it works.
- There is a known issue where projects with very short names may not import. That's being worked on - so if you have one of those projects, please check in later!
- A Firebase project in the new console is also a Google Developers/Google Cloud console project. There is a limit to how many of those you can have.
To check if its the third case, try going to http://console.developers.google.com and see how many projects you have. If its a few (double digits) you may be hitting this issue. You can delete any unused projects and then try and import again. Unfortunately you may have to wait a bit as projects can be un-deleted, so the slot isn't made available immediately.
If none of this fits you, then it may be something new! Try filing a ticket with the support team and include the details of your project: https://firebase.google.com/support/contact/troubleshooting/
来源：https://stackoverflow.com/questions/37347203/cannot-import-firebase-project