如何修复iOS端Facebook登录报错：‘登录错误，登录此应用时出现问题’？

1. 检查Info.plist核心配置 #

确保iOS项目的Info.plist中添加以下必填项：

• 配置Facebook应用信息：

  <key>FacebookAppID</key>
  <string>你的应用ID</string>
  <key>FacebookDisplayName</key>
  <string>你的应用名称</string>
  

• 添加URL白名单：

  <key>LSApplicationQueriesSchemes</key>
  <array>
    <string>fbapi</string>
    <string>fbauth2</string>
    <string>fbshareextension</string>
  </array>
  

• 配置回调URL Scheme：

  <key>CFBundleURLTypes</key>
  <array>
    <dict>
      <key>CFBundleURLSchemes</key>
      <array>
        <string>fb你的应用ID</string>
      </array>
    </dict>
  </array>
  

2. 修复Pod依赖兼容性 #

进入iOS目录执行以下命令，确保依赖完全适配：

pod deintegrate
pod install --repo-update

建议锁定react-native-fbsdk版本为3.0.0，该版本对RN 0.60+系列兼容性较好。

3. 处理iOS 14+跟踪权限 #

iOS 14及以上系统需要主动申请跟踪权限，在Info.plist添加权限说明：

<key>NSUserTrackingUsageDescription</key>
<string>需要获取设备信息以完成Facebook登录验证</string>

并在登录前主动请求权限：

import { requestTrackingPermissions } from 'react-native-fbsdk';

const prepareLogin = async () => {
  const { status } = await requestTrackingPermissions();
  if (status === 'granted') {
    // 执行Facebook登录逻辑
  }
};

4. 验证AppDelegate回调配置 #

• Objective-C版本（AppDelegate.m）：

  #import <FBSDKCoreKit/FBSDKCoreKit.h>
  
  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [[FBSDKApplicationDelegate sharedInstance] application:application didFinishLaunchingWithOptions:launchOptions];
    return YES;
  }
  
  - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
    BOOL handled = [[FBSDKApplicationDelegate sharedInstance] application:application openURL:url options:options];
    return handled || [super application:application openURL:url options:options];
  }
  

• Swift版本（AppDelegate.swift）：

  import FBSDKCoreKit
  
  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)
    return true
  }
  
  func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    let handled = ApplicationDelegate.shared.application(app, open: url, options: options)
    return handled || super.application(app, open: url, options: options)
  }
  

5. 核对Facebook开发者后台设置 #

• 确认iOS平台的Bundle ID与项目CFBundleIdentifier完全一致
• 添加测试设备的UDID到后台测试设备列表
• 确保已开启public_profile、email等必要的登录权限

内容的提问来源于stack exchange，提问作者Vova Ivaniuk