FacebookSDK 3.0 - Apple Mach-O 链接器错误

Question

FacebookSDK 3.0 - Apple Mach-O 链接器错误

13

我正在尝试在我的一个应用程序中实现Facebook，因此按照Hackbook上的官方Facebook教程进行了操作。 https://developers.facebook.com/docs/howtos/login-with-facebook-using-ios-sdk/

我按照说明完成了一切，没有任何错误或警告。然而，当我尝试构建应用程序时，出现了17个Mach-O链接器错误。

Undefined symbols for architecture i386:
  "_FBSessionStateChangedNotification", referenced from:
      -[ForeverMainViewController sessionStateChanged:state:error:] in ForeverMainViewController.o
  "_sqlite3_bind_double", referenced from:
      -[FBCacheIndex _updateEntryInDatabaseForKey:entry:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _writeEntryInDatabase:] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_bind_int", referenced from:
      -[FBCacheIndex _updateEntryInDatabaseForKey:entry:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _writeEntryInDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _trimDatabase] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_bind_text", referenced from:
      -[FBCacheIndex _updateEntryInDatabaseForKey:entry:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _writeEntryInDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _removeEntryFromDatabaseForKey:] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_close", referenced from:
      ___23-[FBCacheIndex dealloc]_block_invoke_0 in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_column_double", referenced from:
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_column_int", referenced from:
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _fetchCurrentDiskUsage] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _trimDatabase] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_column_text", referenced from:
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _trimDatabase] in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_errmsg", referenced from:
      _releaseStatement in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _updateEntryInDatabaseForKey:entry:] in FacebookSDK(FBCacheIndex.o)
      _initializeStatement in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _writeEntryInDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _fetchCurrentDiskUsage] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _removeEntryFromDatabaseForKey:] in FacebookSDK(FBCacheIndex.o)
      ...
  "_sqlite3_exec", referenced from:
      ___36-[FBCacheIndex initWithCacheFolder:]_block_invoke_0 in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_finalize", referenced from:
      _releaseStatement in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_open_v2", referenced from:
      ___36-[FBCacheIndex initWithCacheFolder:]_block_invoke_0 in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_prepare_v2", referenced from:
      _initializeStatement in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_reset", referenced from:
      _initializeStatement in FacebookSDK(FBCacheIndex.o)
  "_sqlite3_step", referenced from:
      -[FBCacheIndex _updateEntryInDatabaseForKey:entry:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _writeEntryInDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _readEntryFromDatabase:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _fetchCurrentDiskUsage] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _removeEntryFromDatabaseForKey:] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _dropTrimmingTable] in FacebookSDK(FBCacheIndex.o)
      -[FBCacheIndex _trimDatabase] in FacebookSDK(FBCacheIndex.o)
      ...
ld: symbol(s) not found for architecture i386

重新实现后，整理应用程序，确保一切都在那里，但我已经没有更好的想法了。我还在另一个应用程序中实现了它，但是错误再次出现了。Facebook提供的示例按预期工作。我在网上试过各种提示，但到目前为止没有一个有效。也许这里有人对API了解得更多，并能给我一个好的提示 :)

- Blade

你尝试过为设备（iPhone/iPad等）构建吗？在尝试时是否有不同的错误消息？现在看起来有点像您正在尝试将模拟器构建链接到设备库。 - Till

嘿，我已经在iPhone和iPad模拟器上以及我的设备上尝试过了，但错误仍然存在。 - Blade

错误不应该保持不变。如果是这样，错误底部的架构应该会出现“ld: symbol(s) not found for architecture armv7”的故障。 - CodaFi

没错。我是指我发布的那些错误。 - Blade

你是否可能在文件中没有导入这个框架#import？ - CodaFi

显示剩余3条评论

3个回答

4

我觉得你漏掉了这个步骤

前往项目 -> 构建阶段 -> 链接二进制文件 -> 添加 -> -lsqlite3.0

- btmanikandan

1

是的，我找到了解决方案：libsqlite3.dylib。我使用的是编译为armv6而不是7的版本，所以你需要下载Xcode dmg文件（4.2以上版本），并从中提取该库。

- Vaibhav Sharma

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可以查看英文原文，
原文链接

- user1325394 · Accepted Answer

我认为你缺少了这行代码：

``` NSString *const FBSessionStateChangedNotification = @"FBSessionStateChangedNotification"; ```

并且需要添加对 -lsqlite3.0 库的引用。

请参考 https://developers.facebook.com/docs/getting-started/getting-started-with-the-ios-sdk/#project。