1 使用 CocoaPods 时出现重新写了一了 Podfile 文件:

删除命令:

rm -rf .Podfile.swp

点我看地址

2 拒绝审核理由

Information NeededYour iTunes Connect settings indicate that your app serves third-party advertisements. However, we were unable to locate ads in your app.Please reply to this message to provide the steps for locating third-party ads in your app. When we hear back from you, we will continue the review.

3 no-input file

解决方法:

]

4 问题是:

ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/update_rubygems

解决方法:

sudo gem install -n /usr/local/bin cocoapods

点我看地址

5 ARC&MRC 混编

解决方法:1.MRC 修改为可编译的 ARC 文件时添加[-fno-objc-arc]2.ARC 修改为可编译的 MRC 文件时添加[-fobjc-arc]

6 请求数据返回状态码[NSCFNumber]和[NSString]比较

[responseObject[@"status"]]就是需要比较的返回值解决方法:

        NSString *tempStr = [NSString stringWithFormat:@"%@",responseObject[@"status"]];        if ([tempStr isEqualToString:@"1"]) {         }

2.

[responseObject[@"status"] isEqualToNumber:[NSNumber numberWithInt:1]]

3. [responseObject[@"status"] isEqualToNumber:@1]

7 开发中自己命名的类和系统中重复时会提示

Message is implemented in both XXX 文件和 XXX 文件 One of the two will be used. Which one is undefined.

解决方法:在开发过程中难免会出现这种情况,在[stackoverflow]网站有解决方案在[csdn]网站上中文解释不过,我没有成功,而是重新命名了,感觉很酸爽

8 本地数据没有同步到服务器上导致模拟机测试正常,真机测试失败

warning: could not load any Objective-C class information from the dyld shared cache. This will significantly reduce the quality of type information available.

解决方法:ps.也有可能在其他问题上出现这个警告,挖个坑先

9 [@class]问题

解决方法:将上面的注掉的去掉就可以了关于[@class]相关参考

@class ChartView;

10 [Undefined symbols for architecture i386]

在使用第三方登陆的时候,调用[TencentOpenAPI]报错

解决方法:

并没有解决,啊哈哈哈哈哈哈哈

不过,在这里好像有点意思,相关参考

11 真机测试[Unsupported device model]

“(null)” is of a model that is not supported by this version of Xcode. Please use a different device.

Cannot (null) '项目名字'.

解决方法:

重启 Xcode 就可以了,😆😆😆

12 warning: Missing file: XXX is missing from working copy 警告错误解决

解决方案:相关参考

13 duplicate interface definition for class ""

重复引入文件解决方案:

找到重复的文件/文件夹,直接删除

14 is missing from working copy

我的是在 git 情况下出现的问题其实你的文件已经丢失.是无法 cd 到你的那个文件下的所以,应该是 cd 到你的工程下,再执行 git 命令才行

git rm 丢失的文件路径

如果你太多的警告是在同由于同一个文件夹的丢失可以直接删除文件夹,其实就是批量删除,执行命令如下:

git rm -m 丢失的文件夹名字

解决方案:相关参考

15 播放一段自定义音效初现问题

音频的路径不对把要播放的音频放在TARGETS - Build Phases - Copy Bundle Resources里

    /**     * inFileUrl:音频文件url     * outSystemSoundID:声音id（此函数会将音效文件加入到系统音频服务中并返回一个长整形ID）     */    AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &soundID);

上面这段代码崩溃是因为我的全局断点条件设置不对.

相关参考

16 自定义静态变量static加入const出现警告

Sending 'const NSString *__strong' to parameter of type 'NSNotificationName _Nonnull' (aka 'NSString *') discards qualifiers

static  const NSString *name = @"wtf";
static NSString *const  name = @"wtf";

解释：前者相当于指针本身不可修改，后者表示指针指向的内容不可修改，两者的作用都是使 firstString 只可读不可写。相关参考

17 TableView 补全分割线

//实现下面的代理方法即可tableview 分割线补全-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {        if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {        [cell setSeparatorInset:UIEdgeInsetsZero];    }        if ([cell respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]) {        [cell setPreservesSuperviewLayoutMargins:NO];    }        if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {        [cell setLayoutMargins:UIEdgeInsetsZero];    }}

18 打印数据很多

OS_ACTIVITY_MODE disable

19 Install additional required components ?

当然是选择Install了,昨晚电脑休眠，今早打开发现 iTunes 升级了，再次打开 xcode 就出现了这个情况

20.UIColor 赋值溢出问题

UIColorBreakForOutOfRangeColorComponents

所以你需要打一个这样条件的断点去调试

stackoverflow

21.约束问题的断点调试(上图有)

UIViewAlertForUnsatisfiableConstraints

[kRootViewController.view drawViewHierarchyInRect:self.bounds afterScreenUpdates:afterUpdates];

kRootViewController是根视图的一个宏定义，在drawViewHierarchyInRect：afterScreenUpdates:方法里 crash 我在 stackoverflow 上找到了解决方案需要判断一下她的superview或者window是否为nil;stackoverflow上描述的会更清楚一些

22xcode 9提交审核时需要 1024*1024 的图片 logo

WARNING ITMS-90704: "Missing Marketing Icon. iOS Apps must include a 1024x1024px Marketing Icon in PNG format. Apps that do not include the Marketing Icon cannot be submitted for App Review or Beta App Review."

以前在工程里没有这个尺寸的 Icon 最好添加一下吧😊

23.xcode 9 xib Safe Area Layout Guide Before iOS 9.0

Xcode 9.0 里的一个 xib 出现了这个问题CSDN上找到了解决方案

24 [This generally means that another instance of this process was already running or is hung in the debugger.]

25 The request was denied by service delegate (SBMainWorkspace) for reason:

是不是勾选了下面这个，如果没有用到的话话取消勾选就可以了

##25 Warning: Multiple build commands for output /.../...更新第三方 SDK 文件覆盖后出现这个问题，删除重复的就 OK 了

参考地址

26 Xcode 10 中 Multiple commands produce……

1 情况一

:-1: Multiple commands produce '/Users/***/Library/Developer/Xcode/DerivedData/TeSt-hjlyjwcmyontcqfoyyuqxiupqzqn/Build/Products/Debug-iphonesimulator/TeSt.app':1) Target 'TeSt' has create directory command with output '/Users/***/Library/Developer/Xcode/DerivedData/TeSt-hjlyjwcmyontcqfoyyuqxiupqzqn/Build/Products/Debug-iphonesimulator/TeSt.app'2) That command depends on command in Target 'TeSt': script phase “[CP] Copy Pods Resources”

工程应该是生成output文件里命令的问题出在Copy Pods Resources里解决方法找到工程的target→Build Phases→Copy Pods Resources→Output Files移除

${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}

2 情况二

:-1: Multiple commands produce '/Users/***/Library/Developer/Xcode/DerivedData/TeSt-hjlyjwcmyontcqfoyyuqxiupqzqn/Build/Products/Debug-iphonesimulator/TeSt.app/Info.plist':1) Target 'TeSt' (project 'TeSt') has copy command from '/Users/***/Desktop/TeSt/TeSt/Vendor/FBKVOController/Info.plist' to '/Users/***/Library/Developer/Xcode/DerivedData/TeSt-hjlyjwcmyontcqfoyyuqxiupqzqn/Build/Products/Debug-iphonesimulator/TeSt.app/Info.plist'2) Target 'TeSt' (project 'TeSt') has process command with output '/Users/***/Library/Developer/Xcode/DerivedData/TeSt-hjlyjwcmyontcqfoyyuqxiupqzqn/Build/Products/Debug-iphonesimulator/TeSt.app/Info.plist'

  1 在 Xcode里, 选择 File->Project/Workspace settings.  2  build system → Legacy Build system.

参考地址

27 Xcode 解决警告“ld: warning: directory not found for option”

删除了引用文件的原因,在以下路径删掉编译报 warning 的路径

targets--build settings--Library Search Paths 和Framework Search Paths

参考地址

28 note: please rebuild precompiled header

重新 clean 一下工程，然后编译。