Android app crashes while trying to authenticate with access token got from vimeo developer dashboard. Below is the stacktrace

• Stacktrace

  Caused by: java.lang.IllegalStateException: Authentication is not supported when using a fixed access token
  at com.vimeo.networking2.internal.NoOpAuthenticatorImpl.reject(NoOpAuthenticatorImpl.kt:85)
  at com.vimeo.networking2.internal.NoOpAuthenticatorImpl.authenticateWithClientCredentials(NoOpAuthenticatorImpl.kt:23)
  at com.radio.playbackspeeddemo.PlayApp.onCreate(PlayApp.kt:27)
  at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1190)
  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6850)

• Code causing issue:

val accessToken: String = "token here"
var vimeoApiConfiguration: VimeoApiConfiguration? = null
var vimeoApiClient: VimeoApiClient? = null

    vimeoApiConfiguration = VimeoApiConfiguration.Builder(accessToken)
        .build()
    val authenticator = Authenticator(vimeoApiConfiguration!!)

    vimeoApiClient = VimeoApiClient(vimeoApiConfiguration!!, authenticator)

    authenticator.authenticateWithClientCredentials(
        vimeoCallback(
            onSuccess = {
                Log.e("vimeo success", "vimeo success")
            },
            onError = {
                Log.e("vimeo failed", "vimeo failed")
            }
        )
    )

Start with PlayApp.kt:27 and read the stack trace into NoOpAuthenticatorImpl.kt:23 and :85. Check how VimeoApiConfiguration.Builder(accessToken) interacts with Authenticator.authenticateWithClientCredentials; done means the fixed-token authentication behavior is understood and the reported crash path has a clear resolution.