If you see a black screen with no device pictured (example below):
Please follow these steps:
Right-click in the middle of the screen (where the device is usually shown) and select Reload Frame.
If this does not work, try changing the device (left side of your screen).
If this does not work, try refreshing the page.
I get a gray screen in Run Mode
If you see a device with a gray screen (example below):
First, verify that you have completed all necessary steps for Firebase setup. Your Firebase project tab should look like this:
If you have already enabled Firebase, we recommend downloading the code and testing it locally on your machine. This will allow you to identify the exact source of your error. Here are the instructions on how to test your app locally on your machine.
I see a loading spinner in run mode, how do I fix this?
If you see a loading spinner in run mode then please try to run the application once again after updating your project's Firestore rules.
Here are the steps to update Firestore rules:
Go to Firestore and then select Settings.
Copy the Firestore rules by selecting the copy icon (
Next, go to Firebase console and open you application. You can do this using the project list dropdown (