您可以检查您的Facebook App ID& Firebase控制台中的机密设置正确吗?如果是这样，请在 https://firebase.google.com上提交Firebase身份验证错误. /support/contact/bugs-features/

Can you check your Facebook App ID & Secret settings in Firebase Console are correct? If so, please file a bug for Firebase Authentication at https://firebase.google.com/support/contact/bugs-features/