FacebookModule.java - expo-facebook - where the error came from

FacebookModule.java

//Source: https://github.com/expo/expo/blob/master/packages/expo-facebook/android/src/main/java/expo/modules/facebook/FacebookModule.java#L153-L217

@ExpoMethod
  public void logInWithReadPermissionsAsync(final ReadableArguments config, final Promise promise) {
    if (FacebookSdk.getApplicationId() == null) {
      promise.reject(ERR_FACEBOOK_MISCONFIGURED, "No appId configured, required for initialization. " +
          "Please ensure that you're either providing `appId` to `initializeAsync` as an argument or inside AndroidManifest.xml.");
    }

    // Log out
    AccessToken.setCurrentAccessToken(null);
    LoginManager.getInstance().logOut();

    // Convert permissions
    List<String> permissions = (List<String>) config.getList("permissions", Arrays.asList("public_profile", "email"));

    if (config.containsKey("behavior")) {
      LoginBehavior behavior = LoginBehavior.NATIVE_WITH_FALLBACK;
      switch (config.getString("behavior")) {
        case "browser":
          behavior = LoginBehavior.WEB_ONLY;
          break;
        case "web":
          behavior = LoginBehavior.WEB_VIEW_ONLY;
          break;
      }
      LoginManager.getInstance().setLoginBehavior(behavior);
    }

    LoginManager.getInstance().registerCallback(mCallbackManager, new FacebookCallback<LoginResult>() {
      @Override
      public void onSuccess(LoginResult loginResult) {
        LoginManager.getInstance().registerCallback(mCallbackManager, null);

        // This is the only route through which we send an access token back. Make sure the
        // application ID is correct.
        if (!mAppId.equals(loginResult.getAccessToken().getApplicationId())) {
          promise.reject(new IllegalStateException("Logged into wrong app, try again?"));
          return;
        }
        Bundle response = accessTokenToBundle(loginResult.getAccessToken());
        response.putString("type", "success");
        promise.resolve(response);
      }

      @Override
      public void onCancel() {
        LoginManager.getInstance().registerCallback(mCallbackManager, null);

        Bundle response = new Bundle();
        response.putString("type", "cancel");
        promise.resolve(response);
      }

      @Override
      public void onError(FacebookException error) {
        LoginManager.getInstance().registerCallback(mCallbackManager, null);

        promise.reject(ERR_FACEBOOK_LOGIN, "An error occurred while trying to log in to Facebook", error);
      }
    });

    try {
      LoginManager.getInstance().logInWithReadPermissions(mModuleRegistry.getModule(ActivityProvider.class).getCurrentActivity(), permissions);
    } catch (FacebookException e) {
      promise.reject(ERR_FACEBOOK_LOGIN, "An error occurred while trying to log in to Facebook", e);
    }
  }