Problem in connecting second app to firebase

Question

When I connect my second Android app to firebase, after sometime it shows process unexpectedly exit this error. Please suggest me tips for how to configure multiple projects for same database. Because one app is retrieving data and another was upload the data.

I never done before like this. Now I developed two different apps. One to show data and one to upload data. But when I connect with firebase second app shows error and this was process unexpectedly exit . I don't know why it is coming and where.

So please help me. If do you have any tips or suggestion for me please suggest. Thank you in advance.

Answer 1

Go to your firebase console, then click on Project settings :

After click on Add App :

And finally, download the google-service file in your second application.