Undefined symbols for architecture i386:
"_SCError", referenced from:
-[Reachability startNotifier] in Reachability.o
"_SCErrorString", referenced from:
-[Reachability startNotifier] in Reachability.o
"_SCNetworkReachabilityCreateWithAddress", referenced from:
+[Reachability reachabilityWithAddress:] in Reachability.o
"_SCNetworkReachabilityCreateWithName", referenced from:
+[Reachability reachabilityWithHostname:] in Reachability.o
"_SCNetworkReachabilityGetFlags", referenced from:
解决办法：得加入SystemConfiguration.framework
Warning: Error creating LLDB target at path '/***/***/***/***.app'- using an empty LLDB target which can cause slow memory reads from remote devices."
解决办法：在both Project and Target中修改 Change 'Architectures' to 'Standard architectures (armv7, arm64) - $(ARCHS_STANDARD)'
Valid Architectures => arm64 armv7
如果不希望tabbarController在超过5个viewcontrollers的情况下出现morecontroller，可以采用：self.moreNavigationController.navigationBarHidden = YES;
NSURL 写网址要加http://
关于scrollView的autolayout：
1.scrollView的四个约束
2.scrollView子view的6个约束。（多了一个距离scrollview的底部和右边的约束，就是通过这个计算content size）
例如我设scrollview的height为100，子view距离父view上200，下20；那么这样就可以自动生成scrollview的content size。
在storyboard中用tableviewcontroller，连线都正确，cellforRowAtindexPath方法不执行。
原因是，系统的numberOfSectionsInTableView方法中，return 0；因为section至少为1，所以如果是0，则后面的方法都不执行。因此prototypecell 会出不来。
tableview如何关联xib的cell：
首先创建一个xib，里面只能有一个tableviewcell。
UINib*nib= [UINibnibWithNibName:@"detailCell"bundle:nil]; 获得xib文件
[sponsorsregisterNib:nibforCellReuseIdentifier:@"details"]; tableview关联这个cell。
如果报这个错：invalid nib registered for identifier ((null)) - nib must contain exactly one top level object which must be a UITableViewCell instance
那么就要在cell的xib文件中设置file's owner 为控制器即可。
要想用代码写一个控件的autolayout 就必须加translatesAutoresizingMaskIntoConstraints=NO;
否则会报这个错误：
Unable to simultaneously satisfy constraints.
但是：注意self.view 这个父view的translatesAutoresizingMaskIntoConstraints是绝对不能设为NO的；
手写autolayout，必须先把试图加到view上，形成父子关系（[A addsubview:B];）,然后在写约束才行。
xib中加载另一个xib：
同时，在这个view的.m文件中的initWithCoder方法里面一定要加载对应的childView的xib文件。
详细请看：iOS Interface Builder：在.xib文件中加载另一个.xib文件 - backslash112 - 博客园
storyboard 关联xib：
首先storyboard中的view会通过class去找对应的.m文件；然后再文件中
- (id)awakeAfterUsingCoder:(NSCoder*)aDecoder{
BOOLtheThingThatGotLoadedWasJustAPlaceholder = ([[selfsubviews]count] ==0);
if(theThingThatGotLoadedWasJustAPlaceholder) {
UIView* theRealThing = [[[NSBundlemainBundle]loadNibNamed:@"sponsorsList"owner:niloptions:nil]firstObject];
// pass properties through
//[self copyUIPropertiesTo:theRealThing];
//auto layout
//self.translatesAutoresizingMaskIntoConstraints = NO;
theRealThing.translatesAutoresizingMaskIntoConstraints=NO;
returntheRealThing;
}
returnself;
}
这样就会去加载对应的xib文件了。
用图形化界面定义cell之后，如何获得Cell里面的控件：
首先给cell中的控件绑定tag；然后用[cell viewWithtag：] 方法获得它。
（如果直接拉线是不能成功的。会报outlets cannot be connected to repeating content 错！）
Undefined symbols for architecture i386:
"GetLicense(char const*, char const*, char const*)", referenced from:
-[BDVROfflineEngine licenseFromServer] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"VerifyLicense(char const*, char const*, unsigned int&)", referenced from:
-[BDVROfflineEngine verfiyLicense] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrBuildSlot", referenced from:
-[BDVROfflineEngine initOfflineEngine] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
-[BDVROfflineEngine flushSlot:] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrExit", referenced from:
-[BDVROfflineEngine unInitOfflineEngine] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrFeedAudioData", referenced from:
-[BDVROfflineEngine feedAudio:] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrGetJSONResult", referenced from:
-[BDVROfflineEngine feedAudio:] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrInitial", referenced from:
-[BDVROfflineEngine initOfflineEngine] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrSetParam", referenced from:
-[BDVROfflineEngine setParameter] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrSetSlot", referenced from:
-[BDVROfflineEngine initSlot] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrStartRecognition", referenced from:
-[BDVROfflineEngine setRecoginitionProperty] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
"_bdeasrStopRecognition", referenced from:
-[BDVROfflineEngine feedAudio:] in libBDVoiceRecognitionClient.a(BDVROfflineEngine.o)
错误原因：没有添加libBDVoiceRecognitionClient.a。 我当时添加的是离在线版本的libBDVoiceRecognitionClient.a，实际上添加错了，应该添加在线版本的libBDVoiceRecognitionClient.a.
如何修改工程名：
1.
2.product -> scheme -> new scheme 选择最新的。
报错：NSMutableArray addObject: -[__NSArrayI addObject:]: unrecognized selector sent to instance
原因是NSMutableArray的属性是copy。改为strong 就好了！
github 添加成员：选择项目-> setting->collaborator 搜索你同伴的名字点击添加 即可。
报错：_OBJC_CLASS_$_ASIdentifierManager
就是因为没有添加某个framework或者静态库。。。（多检查一遍）
