Question

在My Xcode项目中，我集成了XMPP框架。它在iOS 5.1模拟器上运行良好。当我尝试在iOS 4.3模拟器上运行项目时，我收到以下错误：

dyld: lazy symbol binding failed: Symbol not found: _objc_storeStrong
  Referenced from: /Users/admin/Library/Application Support/iPhone Simulator/4.3.2/Applications/67451DE6-EFC1-4313-9A29-C2C641F727C6/AppName.app/AppName
  Expected in: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/Foundation.framework/Foundation

dyld: Symbol not found: _objc_storeStrong
  Referenced from: /Users/admin/Library/Application Support/iPhone Simulator/4.3.2/Applications/67451DE6-EFC1-4313-9A29-C2C641F727C6/AppName.app/AppName
  Expected in: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/Foundation.framework/Foundation

以下代码行发生错误：xmppStream = [[XMPPStream alloc] init];

经过进一步调试后，我发现错误发生在这里：

- (id)init
{
    if ((self = [super init])) //**CRASH WHEN EXECUTING THIS STATEMENT
    {
        // Common initialization
        [self commonInit];

        // Initialize socket
        asyncSocket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:xmppQueue];
    }
    return self;
}

我整合XMPP的项目不是ARC。所以我对所有XMPP文件添加了 -fobjc-arc 。 XMPP库提供的示例项目在iOS 4.3模拟器上运行良好。任何人都可以帮我解决这个错误吗？ Xcode版本：4.3.3
iOS：iOS 4.3模拟器

Answer 1

如果XMPP需要ARC并且您明确地将其关闭，则会发生此类链接器错误。尝试从XMPP文件中删除-fno-objc-arc，并在项目的其他链接器标志中添加-fobjc-arc。 More info

XMPP无法在iOS 4.3项目上运行

1 个答案: