Xcode 常常遇到的警告、错误,解决方法

从sdk3.2.5升级到sdk 7.1中间废弃了很多的方法,还有一些逻辑关系更加严谨了。
**1,警告:“xoxoxoxo” is deprecated
**解决办法:查看xoxoxoxo的这个方法的文档,替换掉这个方法即可。

**2,警告:Declaration of "struct sockaddr" will not be visible outside of this function
**解决办法:在你的开源.m文件中添加 #import

**3,警告:Implicit conversion from enumeration type ‘UIInterfaceOrientation‘ to different enumeration type ‘UIDeviceOrientation‘
**解决办法:类型不匹配。跳到出错的那一行,UIInterfaceOrientation强制转换为UIDeviceOrientation就行了。

4,警告:incompatible pointer types assigning to ‘MyArrayList‘from ‘NSMutableArray‘解决办法:加入强制转换(MyArrayList)

5,警告:****‘&&‘ within ‘||‘问题出处: if (exists && !isDirectory || !exists)………
解决办法: if ((exists && !isDirectory) || !exists)………

**6,警告:Warning:The Copy Bundle Resources build phase contains this target‘s Info.plist file
**解决办法:将Info.plist文件移到Resources目录下,而不要直接放在target下。

**7,警告:在使用ASIHttp…第三方库的,运行报错。
**解决办法:看你的项目中是否添加CFNetwork.framework、SystemConfiguration.framework, MobileCoreServices.framework,CoreGraphics.framework和libz.1.2.3.dylib,如果是sdk5.0以上,改添加libz.1.2.5.dylib

8,警告:xxxooo,******missing required architecture i386 in file
** 解决办法:如果是错误信息的话:
Target->Build Settings->Search Paths, 删除FrameworkSearch Paths 里面内容就可以了。**要只是一个警告的话,真机调试可以过。具体解决方法待大神出现。

**9,警告:clang: error: no such file or directory: ‘/demo2/控件代码/13/Recorder/Recorder_Prefix.pch‘clang: error: no input filesCommand /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang failed with exit code 1
**解决办法: 在你的主工程文件 target搜素,pch ,找到Prefix Header 把它后面的值,都删除,再运行就解决了。

10,警告:“ARC forbids synthesizing a property of an Objective-C object with unspecified ownership or storage attribute
**解决办法:如果定义了ARC有效,那么必须要有所有者属性的定义;所以代码改成下面这样@property (nonatomic, strong, readonly) NSString *ss;

11,警告:io6一下的xib系统均没有自动选择Use Autolayout, Supporting iOS 5 and below with xib of iOS 6
**解决办法:Just un-select “Use Autolayout” in the file inspector of the xib’s view and we are back to the familiar autosizing in size inspector and boom, it supports iOS 5 and below.

12,警告:Warning: Multiple build commands for output file xxx.png
解决办法:找到项目里xxx.png重复,删除重复的资源。//以下是升级到 xcode 5.0.1 之后使用遇到的警告

13,警告: “iOS 模拟器”未能安装此应用程序。
解决办法:删除模拟器上当前要运行那个APP,重新运行项目。就ok

14,警告:SpringBoard无法启动应用程序 错误:-3
解决办法:退出模拟器,重新运行这个项目。

15,警告:The server certificate failed to verify.
解决办法:1、打开终端(实用工具 -->终端),在终端中输入如下命令:svn ls https://192.100.1.11?0/svn/xxxxxx(注意下面的url更换成你自己的url地址)然后直接输入 “ p ” 确认,就可以重新连接了。

16,警告:Bitmasking for introspection of Objective-C object pointers is strongly discouraged.
解决办法:某数字& 0x1的时候是代表要取最低位是否为1,改成了 if(JK_EXPECT_F(((NSUInteger)object)%2))即可。

17,警告:Implicit conversion loses integer precision: ‘unsigned long‘ to ‘CC_LONG‘ (aka ‘unsigned int‘).
解决办法: CC_MD5(str,strlen(str), r);,改成了 CC_MD5(str, (CC_LONG)strlen(str), r);即可。

18,警告:error: failed to launch ‘/private/var/mobile/Applications/xxxxx‘ -- failed to get the task for process 11140.
解决办法: 重启你的开发手机即可,还有一种可能是你的开发者证书与发布证书搞错了,检查在xcode中证书是否一直 。

19,警告:error: ignoring filxxxxxx/libBaiduMobStat.a, missing required architecture x86_64 in filexxxx/libBaiduMobStat.a
解决办法: targets ->build setting 下的 architectures 设置为 standard architetures(armv7,armv7s) vaild architectures 设置为armv7,armv7s。

20,警告:error: Directory not found for option ‘-L/Users/joryoubonxx/BaiduStatistic
解决办法: 删除 targets ->build setting 下的 library search path不正确的地址,如果还不行,重新添加第三库、clean ,重启Xcode.即可。遇到相关的警告,一般编译器都会提供解决方案,所以,作为新手,我们应该看懂编译器给我们的提示,这样我们解决问题就会事半功倍。

1、 错误信息: "OBJC_CLASS$ xxxxx ", referenced from: objc-class-ref in ViewController.old: symbol(s) not found for architecture i386clang: error: linker command failed with exit code 1 (use -v to see invocation)
解决方法: 查看工程,看是不是没有导入相关的框架。或者工程里添加的有相同".m",".h" 文件

2、错误信息:Couldn‘t register dy.CKRiLiText with the bootstrap server. Error: unknown error code.This generally means that another instance of this process was already running or is hung in the debugger.Current language: auto; currently objective-c
解决方法: 可能是电脑内存问题引起,重启电脑即可解决。如果重启解决不了问题,那就是你刚刚改动的代码引起的问题。

3 、错误信息:********ios 5是调试正常****的,**ios 6真机调试的时候,出现如下错误:****ld: file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/mac4/Desktop/my desktop/My app/MyApp name 20:09:12 /MyApp name/ZBarSDK/libzbar.a for architecture armv7s****error:linker command failed with exit code 1 (use -v to see invocation)
**解决方法:在Xcode里,点击相应的Target,然后点Build Settings,找到VALID_ARCHS,看里面的是不是arvm7s,如果不是改成arvm7s就可以了。

4 、 错误信息: error: receiver type ‘ViewController‘ for instance message does not declare a method with selector ‘hideSearchBar:‘ [4]ViewController 中没有声明一个方法选择‘hideSearchBar:
解决方法:在ViewController .h 中声明一下这个方法 “** hideSearchBar **” 即可。

5、 错误信息:当json从服务端请求时得到的字符串,如果这样写的话,会报错,******‘;‘ after top level declaratorNSString *ss= @"{"recommend":"世界末日","****dogname****":"机器人"}";
解决方法:就是,把 “ 替换成 " 即可。****NSString *ss= @"{******** "********recommend******** "********:******** "********世界末日******** "********,******** "********dogname******** "********:******** "********机器人******** "********}"; **

6 、 错误信息: error: Existing instance variable ‘_datasource‘ for property ‘datasource‘ with assign attribute must be __unsafe_unretained解决方法: id _datasource; 改为 __unsafe_unretained id _datasource:即可

**7 、 错误信息:error: No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i386).
**解决方法: targets ->build setting 下的 Build Active Architecture Only 设置 NO 即可.

8.、iOS真机调试中出现identity(The identity ‘iPhone Developer)证书不匹配的问题提示(null) error: could not read CFBundleIdentifier from Info.plist (null)新建一个同名工程,拷贝其plist文件,将原工程中的plist文件替换掉即可。

31、警告: warning: Semantic Issue: Incompatible integer to pointer conversion assigning to ‘BOOL *‘ (aka ‘signed char *‘) from ‘BOOL‘ (aka ‘signed char‘)
解决办法: 检查 BOOL *换为BOOL就可以了,检查是不是多写一个 * 号。

32:Jsonkit中的警告Direct access to objective-c‘s isa is deprecated in favor of object_setClass() and object_getClass()object->isa 替换为 object_getClass(object)keyObject->isa 替换为 object_getClass(keyObject)(id)keys[idx]->isa 替换为 object_getClass((id)keys[idx])format specifies type ‘unsigned long‘ but the argument has type ‘nsuinteger‘ (aka ‘unsigned int‘)给变量增加(unsigned long)进行类型转换

33:md5加密(iOS SDK中自带了CommonCryptoImplicit declaration of function ‘CC_MD5‘ is invalid in C99[plain] view plaincopy #define CC_MD5_DIGEST_LENGTH 16 +(NSString *)MD5HashForString:(NSString *)input { const char *cStr = [input UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5(cStr, strlen(cStr), result); return [NSString stringWithFormat: @"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15]]; } 引入函数定义的头文件#import

34:ASIDataDecompressor中的警告format specifies type ‘short‘ but the argument has type ‘int‘在+ (NSError *)deflateErrorWithCode:(int)code 和 +(NSError *)inflateErrorWithCode:(int)code中[NSString stringWithFormat:@"Compression of data failed with code %hi",code] 中将code改为 (short)code,类型转换

35、Reachability中警告Using ‘stringWithString:‘ with a literal is redundantstatusString = [NSString stringWithString: @"Not Reachable"]; 改为:statusString = @"Not Reachable";36.format specifies type ‘id‘ but the argument has type ‘const char *‘NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", msg);改为:NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", [NSString stringWithUTF8String:msg]);37 Using ‘stringWithString:‘ with a literal is redundant改为:self.locationInput.text = @"captured change";38 在项目中设置控件的layer属性时,会发生错误,"Property ‘c‘ cannot be found in forward class object ‘CALayer *",
这时需要引入 #import

**41、错误****Error launching remote program: failed to get the task for process
**解决方法:把真机上的软件,删除,然后,clean 一下,重新运行就可以了。

42、真机调试的时候,出现 [attachment=49364] 这正常,但是不识别机器的。解决方法:把 , [attachment=49365] 设置为以上相对应的版本就可以了。

43、真机调试的时候,出现 ios Broken pipe解决方法::推出xcode:断开机器(iphone,ipad,ipod)链接:重启iPhone在联接xcode,就可以了。

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