Firebase Error: auth/invalid-api-key, Your API key is invalid, please check you have copied it correctly.

Ionic version:
v1.3.1

AngularFire:
2.0.2

Firebase js:
v3.3.0
Build: 3.3.0-rc.7

Issue:
I am using the correct config keys from Firebase console > Web Setup, all of a sudden my app started throwing error from Firebase as below:

R {code: "auth/invalid-api-key", message: "Your API key is invalid, please check you have copied it correctly."}

Ionic code to login user with firebase email password enabled firebase.auth().signInWithEmailAndPassword()

Expected:
What should be the fix I have checked the API key its same? My app was working fine with same source code and API key and now it is just looping the above error in console.

[nicolasgarnier]

@appplumbr can you point us to your app online if possible? (so we experience the issue)

If you prefer to get private support feel free to use our support channel instead: https://firebase.google.com/support/contact/troubleshooting/

@nicolasgarnier - resolved this myself please go ahead and close this issue

Replaced the API key and it worked

[nicolasgarnier]

I'm glad things worked out for you!

[pourashraf]

@nicolasgarnier
Hi Nicolas,
I'm quite new to firebase and would like to use authentication service for Google in a simple Angular2 test app.

But get the error: message: "Your API key is invalid, please check you have copied it correctly."}

I would appreciate if you help me with it. :)

Regards,
Rozita

[terrysmyth]

@nicolasgarnier I am getting these errors and i have checked and checked the API Key (even though i just copied and pasted it). Would could be causing this?

Regards,

Terry

[eddyekofo94]

I am also getting the error @terrysmyth is getting.
{code: "auth/invalid-api-key", message: "Your API key is invalid, please check you have copied it correctly."}

Im getting the same error.... im using react-native... @terrysmyth @eddyekofo94 @nicolasgarnier @ghost

[eddyekofo94]

@Paloman fixed it by re-copying and pasting my API key, so try that

@eddyekofo94 I did :/ but it didn't work... if you don't mind me asking, are you using the google-services.json file to import the key? or directly through initialize app? also is this a native android app? thanks for all your help

[eddyekofo94]

@Paloman
Yes I am the google-services.json to import the key, I am using ASP.Net Core. But sorry I don’t know how it is implemented in Android.
I don’t know how it works on Android, if you’re still stuck I can go look it up later.

[adnanafzal565]

I am getting this error in core javascript.

[dyoung522]

I too am getting this error. Using Google Authentication works perfectly in develop but not in production after deploy. I'm at a loss to figure out why and/or where this needs to be configured.

[lucasmouse]

Replaced the API key and it worked

Yes, but where?