Client error: `POST https://fcm.googleapis.com/fcm/send` resulted in a `401 INVALID_KEY` response

[AkshayRSI]

I am getting above error while sending notification. I dont understand how to resolve it..please help with it. I am getting this error in laravel....

[benwilkins]

According to the error, you have an invalid key. Make sure your keys are set correctly.

[Seedorf161]

I am getting above error while sending notification. I dont understand how to resolve it..please help with it. I am getting this error in laravel....

Hi, please, how did you solve this? i'm getting the same error and i used the "Server key" seen in the Cloud Messaging tab in Firebase console.

[jindalAnuj]

getting the same error any update

[lexjwa]

Getting the same error.

[aymanalhattami]

Getting the same error.

[aymanalhattami]

The same error happened to me last week, that was because the value of key returned as 0 instead of firebase server key. I solve it by overriding vendor class composer overriding vendor class composer

[mertayasa]

@aymanalhattami did you just override without changing something ?

[mertayasa]

@aymanalhattami never mind, i figured out your solution.. the actual problem is its unable to read fcm key from services.php file. so i override the class as you said and put fcm key in another config file.. then call it.. viola.. it works.. thanks for hinting that