Error while doing phone authentication on firebase

Question

While doing phone number authentication on firebase i'm getting crash with this error message. please help.

com.russvkm.chathut is my package name

E/AndroidRuntime: FATAL EXCEPTION: main
        Process: com.russvkm.chathut, PID: 24323
        java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/browser/customtabs/CustomTabsIntent$Builder;
            at com.google.firebase.auth.internal.RecaptchaActivity.zza(com.google.firebase:firebase-auth@@20.0.0:92)
            at com.google.firebase.auth.api.internal.zzeq.zza(com.google.firebase:firebase-auth@@20.0.0:79)
            at com.google.firebase.auth.api.internal.zzeq.onPostExecute(com.google.firebase:firebase-auth@@20.0.0:88)
            at android.os.AsyncTask.finish(AsyncTask.java:695)
            at android.os.AsyncTask.access$600(AsyncTask.java:180)
            at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
            at android.os.Handler.dispatchMessage(Handler.java:106)
            at android.os.Looper.loop(Looper.java:201)
            at android.app.ActivityThread.main(ActivityThread.java:6826)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
         Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.browser.customtabs.CustomTabsIntent$Builder" on path: DexPathList[[zip file "/data/app/com.russvkm.chathut-22XI8m2uPLL7Q6CgxXHPiw==/base.apk"],nativeLibraryDirectories=[/data/app/com.russvkm.chathut-22XI8m2uPLL7Q6CgxXHPiw==/lib/arm, /system/lib, /vendor/lib]]
            at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
            at com.google.firebase.auth.internal.RecaptchaActivity.zza(com.google.firebase:firebase-auth@@20.0.0:92) 
            at com.google.firebase.auth.api.internal.zzeq.zza(com.google.firebase:firebase-auth@@20.0.0:79) 
            at com.google.firebase.auth.api.internal.zzeq.onPostExecute(com.google.firebase:firebase-auth@@20.0.0:88) 
            at android.os.AsyncTask.finish(AsyncTask.java:695) 
            at android.os.AsyncTask.access$600(AsyncTask.java:180) 
            at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712) 
            at android.os.Handler.dispatchMessage(Handler.java:106) 
            at android.os.Looper.loop(Looper.java:201) 
            at android.app.ActivityThread.main(ActivityThread.java:6826) 
            at java.lang.reflect.Method.invoke(Native Method) 
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873) 
    I/Process: Sending signal. PID: 24323 SIG: 9

my application is communicating well with firebase server as i don't find any error or crash while doing email authentication.

I'm using following approach to authenticate

PhoneAuthProvider.verifyPhoneNumber(
                PhoneAuthOptions.newBuilder(mAuth)
                        .setPhoneNumber(phoneNumber)
                        .setActivity(this)
                        .setTimeout(60,TimeUnit.SECONDS)
                        .setCallbacks(object:PhoneAuthProvider.OnVerificationStateChangedCallbacks(){
                            override fun onVerificationCompleted(credential:PhoneAuthCredential) {
                                dismissDialog()
                                val smsCode=credential.smsCode
                                Log.i("SMS code",smsCode!!)
                                signInWithPhoneAuthCredential(credential)
                            }

                            override fun onVerificationFailed(p0: FirebaseException) {
                                Toast.makeText(this@Register,p0.message,Toast.LENGTH_SHORT).show()
                            }
                            override fun onCodeSent(verificationId: String, token: PhoneAuthProvider.ForceResendingToken) {
                                super.onCodeSent(verificationId, token)
                                numberLinearLayout.visibility=View.GONE
                                otpLinearLayout.visibility=View.VISIBLE
                                storedVerificationId=verificationId
                                resendToken=token
                                dismissDialog()
                            }
                        })
                        .build()
               )

programme isn't executing otpSent method it is being crashed without sending otp.

Answer 1

Firebase auth got some major changes, like Recaptcha for human verification.it needs a browser to verify so, Add the below depen. and read about changes refer me

    implementation 'androidx.browser:browser:1.2.0'

Update : If you want to avoid human verification, you need to enable safetynet in google cloud console for your firebase project refer this.