Forwarded, no source of the original found.
1. Warning: "xoxoxoxo" is deprecated
Solution: Check the documentation of this method of xoxoxoxo and replace this method.
2, Warning: Declaration of "struct sockaddr" will not be visible outside of this function
Solution: Add #import <netinet/in.h> to your open source .m file
3, Warning: Implicit conversion from enumeration type 'UIInterfaceOrientation ' to different enumeration type 'UIDeviceOrientation'
solution: Type mismatch. Jump to the line where the error occurred, and cast UIInterfaceOrientation to UIDeviceOrientation.
4. Warning: incompatible pointer types assigning to 'MyArrayList*' from 'NSMutableArray'
Solution: Add cast (MyArrayList*)
5. Warning: '&&' within '||'
The source of the problem:
if (exists && !isDirectory || !exists)…………
Solution: if ((exists && !isDirectory) || !exists)…………
6. Warning: Warning: The Copy Bundle Resources build phase contains this target's Info.plist file
Solution: Move the Info.plist file to the Resources directory instead of placing it directly under the target.
7. Warning: When using ASIHttp... a third-party library, an error will be reported.
Solution: See if you add CFNetwork.framework, SystemConfiguration.framework, MobileCoreServices.framework,
CoreGraphics.framework and libz.1.2.3.dylib to your project, if it is above sdk5.0, add libz.1.2.5.dylib instead
8. Warning: xxxooo, missing required architecture i386 in file
Solution: If it is an error message: Target->Build Settings->Search Paths, delete the contents of FrameworkSearch Paths.
If it's just a warning, the real machine debugging can pass. The specific solution is waiting for God to appear.
9. Warning:
clang: error: no such file or directory: '/demo2/control code/13/Recorder/Recorder_Prefix.pch'
clang: error: no input files
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang failed with exit code 1
Solution: Search in your main project file target, pch, find the Prefix Header and delete all the values behind it, then Running it will solve it.
10. Warning:
"ARC forbids synthesizing a property of an Objective-C object with unspecified ownership or storage attribute
Solution: If the definition of ARC is valid, then there must be a definition of the owner attribute; so the code is changed to the following
@property ( nonatomic, strong, readonly) NSString *ss;
11, Warning:
Use Autolayout is not automatically selected for xib systems below io6, Supporting iOS 5 and below with xib of iOS 6
Solution: 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, Warning:
Warning: Multiple build commands for output file xxx.png
Solution: Find the duplicate xxx.png in the project and delete the duplicate resource.
13. Warning:
"iOS Simulator" failed to install this application.
Solution: Delete the APP that is currently running on the simulator and re-run the project. On ok
14, warning:
SpringBoard could not start application error: -3
Workaround: Exit the emulator and rerun the project.
15. Warning:
The server certificate failed to verify.
Solution:
1. Open the terminal (Utilities --> Terminal), and enter the following command in the terminal:
svn ls https://192.100.1.11?0 /svn/xxxxxx ( Note that the url below is replaced with your own url address)
and then directly enter "p" to confirm, you can reconnect.
16. Warning:
Bitmasking for introspection of Objective-C object pointers is strongly discouraged.
Solution:
When a number & 0x1 means whether the lowest bit is 1, change it to if(JK_EXPECT_F(((NSUInteger)object)% 2)) can be.
17. Warning:
Implicit conversion loses integer precision: 'unsigned long' to 'CC_LONG' (aka 'unsigned int').
Solution:
CC_MD5(str,strlen(str), r);, change it to CC_MD5(str, (CC_LONG)strlen(str), r);.
18. Warning:
error: failed to launch '/private/var/mobile/Applications/xxxxx' -- failed to get the task for process 11140.
Solution:
restart your development phone, there is another possibility that your The developer certificate and the release certificate are wrong, check whether the certificate is the same in xcode.
19. Warning:
error: ignoring filxxxxxx/libBaiduMobStat.a, missing required architecture x86_64 in filexxxx/libBaiduMobStat.a
Solution:
The architectures under targets ->build setting are set to standard architetures(armv7,armv7s) vaild architectures is set to armv7,armv7s .
20. Warning:
error: Directory not found for option '-L/Users/joryoubonxx/BaiduStatistic
Solution:
Delete the incorrect address of the library search path under targets -> build setting. If it still doesn't work, re-add the third library, clean, and restart Xcode.
21. Warning:
warning: Semantic Issue: Incompatible integer to pointer conversion assigning to 'BOOL *' (aka 'signed char *') from 'BOOL' (aka 'signed char')
Solution: Check BOOL * to BOOL Now, check whether there is an extra asterisk.
22:Warning in Jsonkit
Direct access to objective-c's isa is deprecated in favor of object_setClass() and object_getClass()
object->isa is replaced by object_getClass(object)
keyObject->isa is replaced by object_getClass(keyObject)
(id)keys[ idx]->isa is replaced by object_getClass((id)keys[idx])
format specifies type 'unsigned long' but the argument has type 'nsuinteger' (aka 'unsigned int'
Implicit 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]];
}
Header file importing function definition
#import <CommonCrypto/CommonDigest.h>
24:Warning in ASIDataDecompressor
format specifies type 'short' but the argument has type 'int'
in +(NSError *)deflateErrorWithCode:(int)code and +( NSError *)inflateErrorWithCode:(int)code in
[NSString stringWithFormat:@"Compression of data failed with code %hi",code]
, change code to (short)code, type conversion
25: Warning
Using 'stringWithString:' in Reachability with a literal is redundant
statusString = [NSString stringWithString: @"Not Reachable"];
instead: statusString = @"Not Reachable";
26 format specifies type 'id' but the argument has type 'const char *'
NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", msg);
Change to: NSCAssert(NO, @"Unhandled error encountered during SAX parse. msg is %@", [NSString stringWithUTF8String:msg]);
27 Using 'stringWithString:' with a literal is redundant
Change to: self.locationInput.text = @"captured change";
28 When setting the layer property of the control in the project, an error will occur,
"Property 'c' cannot be found in forward class object 'CALayer *",
then you need to import #import <QuartzCore/CALayer.h >.
29 If the variable is not initialized in the project, a warning will be reported,
"Variable 'type' may be uninitialized when used here",
then the corresponding variable needs to be initialized.
30， 错误信息：
"_OBJC_CLASS_$ xxxxx ", referenced from:
objc-class-ref in ViewController.o
ld: symbol(s) not found for architecture i386
clang: 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
31， 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。
32 、 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 armv7serror: 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。
33、 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。
34、 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 declarator
NSString *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 \"}";
35、 错误信息：
error: Existing instance variable '_datasource' for property 'datasource' with assign attribute must be __unsafe_unretained
解决方法：
id<ListViewDataSource> _datasource; 改为 __unsafe_unretained id<ListViewDataSource> _datasource:即可
36、 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.
37、 错误信息：
error: failed to launch"/private/var/mobile/Applications/XX"-- timed out waiting for app to launch .
解决方法：
targets ->build setting 下的 把证书选择为 对应正确的开发证书 即可.
38,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。
39,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。
40 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。