Showing "Invalid firebase url specified" please help

[David (‎ David Ningthoujam)]

@cian

You are going to need to build a small test app,

@plang58

Try to make a new Firebase Project than you get a new URL maybe that will work.

@Boban

but check your designer and blocks so it does not contain spaces

Please follow this first. and im repeating again, do something like this to test.

also recheck your url and api key to make sure its correct.