I have done with firebase but otp is still not coming neither on my phone nor on my test phone

github:https://github.com/Ketanpandey77/WhatsApp-Clone
Please correct this and tell what thing i m missing

Do you recieve this log https://github.com/Ketanpandey77/WhatsApp-Clone/blob/master/app/src/main/java/com/example/whattsappclone/OtpActivity.kt#L101

in the logcat?

No,i did’nt receive this log

@KetanPandey The actual error here is

This request is missing a valid app identifier, meaning that neither SafetyNet checks nor reCAPTCHA checks succeeded. Please try again, or check the logcat for more details.

To fix this you need to enable the Device check api on the google cloud platform
follow the steps mentioned here

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