遇到过——Xcode开发错误、警告⚠️——小集合

时间：2022-10-13 15:01:36
1. error: Assertion failure in -[UITextView _firstBaselineOffsetFromTop], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3512.60.12/UITextView.m description: 点击Xcode debug view hierarchy，console输出的警告信息，并且hierarchy并不可见。 solution: 在UITextView的category的implementation文件中加入以下两个方法： @implementation UITextView (Category)
- (void)_firstBaselineOffsetFromTop {  }
- (void)_baselineOffsetFromBottom {    } @end 2. error: Xcode错误"The working ... has uncommitted changes"解决方案 description: 有时候想切换到其他的branch或者试图执行merge、pull、push等操作，即使未做任何修改，也会报出这个错误，因为真正的内容没有任何修改，因此推测可能是某些状态文件或者描述文件在捣鬼。 solution: 只需要进入项目文件夹目录下，分别执行以下两行代码即可。 git rm --cached *.xcuserstate git rm --cached *.xcuserdata 3. error: Application Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file. description: 参考：http://my.oschina.net/vimfung/blog/494687 solution: 在iOS9 beta中，苹果将原http协议改成了https协议，使用 TLS1.2 SSL加密请求数据。解决办法：修改info.plist文件 遇到过——Xcode开发错误、警告⚠️——小集合 4. error: Assertion failure in -[AFHTTPRequestSerializer requestWithMethod:URLString:parameters:error:] —>reference URL solution: NSString*url = [NSStringstringWithFormat:@"http://%@/api",kIp]; 加上 —>>> url = [urlstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 5. error: CGContextSetStrokeColorWithColor: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. solution: 在DrawRect:里加上以下两句： CGContextRef *context =  UIGraphicsGetCurrentContext(); UIGraphicsPushContext(context)； 6. error: "_OBJC_CLASS_$_className", referenced from:  description:根据个人经验，推测一般是对应的.m实现文件丢失引起的。定义了.h文件，忘记实现.m也会报这个错误。solution: Tagert--Build Phases -- Compile Sources下添加对应的.m文件或者实现.m @implementation@end

7.error:Assertion failure in -[AFStreamingMultipartFormData appendPartWithHeaders:body:]description:AFN上传图片，发生这个错误：因为在AFN的方法里面写了图片上传
：[formData appendPartWithFileData:imageData name:@"picture" fileName:@"tupian.jpg" mimeType:@"image/jpeg"];但是当时又没有上传，所以要进行判断。 solution:   [manager POST:[NSString stringWithFormat:@"%@node/addNote" , url] parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
            if (imageData!=nil) {   // 图片数据不为空才传递
            [formData appendPartWithFileData:imageData name:@"picture" fileName:@"tupian.jpg" mimeType:@"image/jpeg"];
            }
        } success:^(AFHTTPRequestOperation *operation, id responseObject) {            NSLog(@"发送成功：%@" , responseObject) ; 8.error:Error Domain=AFNetworkingErrorDomain Code=-1016 "Request failed: unacceptable content-type: ….description:出现这个错误是因为AFN只支持text/json，application/json，text/javascript这几种格式，solution:解决方法有两个:1.直接在AFURLResponseSerialization.m文件中搜索 self.acceptableContentTypes，然后直接添加@“text/html",@"text/plain”,@“video/mpeg" 就可以解决问题。2.代码中添加解决问题self.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html”,@"text/plain" ,@“video/mpeg", nil];9.
error:Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x9152780 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}description:JSON解析错误solution:加上以下代码即可：manager.responseSerializer = [AFJSONResponseSerializer serializer];10.error:The certificate used to sign "XXX" has either expired or has been revoked. An updated certificate is required to sign and install the application.description:由于最近频繁更换电脑开发，因此经常遇到这个问题。在另一台机器上登陆过账号并且真机运行后，本机的证书都会失效，一般情况下，遇到这个问题以后：1.keyChainAccess中查看是否有过期的证书或者无效的证书2.到工程的target中选择正确的证书3.再次运行弹出提示框，并选择Fix issue修复即可解决问题。这次出现这个问题是因为Xcode从7.3.1升级到Xcode8.0。首先尝试解决问题1.查看keyChainAccess并未发现证书失效，target->general->signing中也已经选择正确的证书2.Xcode->preferences->Accounts，账号正确。Run，仍有问题。3.Xcode Menu -> preferences -> Account -> Team -> View Details -> Signing Identities ->Mac Development -> Create4.尝试clean、重启，也没解决问题。solution:在网上查询资料后，终于找到解决的方案：1.clean the project2.Xcode Menu -> preferences -> Account -> Team -> View Details3.selectanyprovisioning profile from Provisioning Profiles list -> Right Click -> Show in Finder4.select all provisioning profiles and move them to trash5. ..-> View Detail -> Download All ProfilesRun it again and it should work.11.error:.cxx_destruct crashdescription:release object which is already nil12.error:真机调试情况下：遇到过——Xcode开发错误、警告⚠️——小集合遇到过——Xcode开发错误、警告⚠️——小集合
dyld: Library not loaded: @rpath/IHFKit.framework/IHFKit
  Referenced from: /var/containers/Bundle/Application/DF33E1CB-0A69-4303-A22A-686E643DE922/iDoctors.app/iDoctors
  Reason: no suitable image found.  Did find:
/private/var/containers/Bundle/Application/DF33E1CB-0A69-4303-A22A-686E643DE922/iDoctors.app/IHFKit.framework/IHFKit: code signing blocked mmap() of '/private/var/containers/Bundle/Application/DF33E1CB-0A69-4303-A22A-686E643DE922/iDoctors.app/IHFKit.framework/IHFKit'Message from debugger: Terminated due to signal 6

description:此处IHFKit是动态库。-1.真机调试时动态库签名需与项目签名一致。-2.若commit的时候把个人用的动态库一起push到分支上，那么teammate拉了代码以后将其本地的动态库签名替换成提交者的签名，与其本地签名不一致，就会导致出现该问题-fatal error @#$%^&*..问题，只需要对动态库重签名一次即可。-3.keychain中证书一般是两个，一个个人的开发者证书，另一个则是在公司的group中的开发证书。-4.如果keychain中有其他的过期或其他原因引起的重复失效证书，同样可能会导致fatal error问题。-5.如果fatal error，最直接的方法就是重签名-6.查看动态库的签名证书 codesign -d -vv IHFKit.framework    — (在动态库所在目录下的执行该命令)

solution:动态库重签名步骤：-1.删除原有IHFKit.framework母包的签名信息遇到过——Xcode开发错误、警告⚠️——小集合
删除_CodeSignature目录

-2.用个人开发证书重签名1）列出电脑上可用的签名。打开Mac终端，输入/usr/bin/security find-identity -v -p codesigning2）根据使用IHFKit的App所使用的签名，对（动态库名）.framework重签名。终端输入codesign -fs “iPhone Developer: xxxx (XXXX)” （动态库名）.framework
重签名后的动态库即可用于开发人员真机调试了。
-3.查看动态库的签名证书 codesign -d -vv IHFKit.framework    — (在动态库所在目录下的执行该命令) 13. error:This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSPhotoLibraryUsageDescription key with a string value explaining to the user how the app uses this data.description:
iOS10开发权限问题
solution:需要在info.plist文件中添加一对key-value属性，key是NSPhotoLibraryUsageDescription，value可随意写。可以直接打开添加，也可以通过SourceCode添加以下<key>NSPhotoLibraryUsageDescription</key><string>photoDescription</string>还有一些其他可能以为权限引起的问题，可一并添加解决：<key>NSCameraUsageDescription</key>      <string>cameraDesciption</string><key>NSContactsUsageDescription</key>      <string>contactsDesciption</string><key>NSMicrophoneUsageDescription</key>      <string>microphoneDesciption</string>>
14.error:

 XXXX  requires a provisioning profile. Select a provisioning profile for the "Debug" build configuration in the project editor.
Code signing is required for product type 'Application' in SDK 'iOS 10.1’
description:
由于Xcode8更新了provision profile引起
solution:
1. 到project -> general中修改signing，选中automatically manage signing
2. 选择enable automatic
 3.选择相应的开发者账号即可，如下:

15.error:
Command /Applications/Xcode.app/Contents/Developer/usr/bin/copypng failedwith exit code 2
solution:
打开工程project->BuildPhases->Copy Bundle Resources,找到对应文件删除

16.error:*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'An instance 0x1461f8600 of class UICollectionView was deallocated while key value observers were still registered with it. Current observation info: <NSKeyValueObservationInfo 0x174434180> (<NSKeyValueObservance 0x1702454f0: Observer: 0x17015cf60, Key path: collectionViewLayout, Options: <New: NO, Old: NO, Prior: NO> Context: 0x100f29308, Property: 0x170245610>
<NSKeyValueObservance 0x1706499f0: Observer: 0x17015cf60, Key path: contentOffset, Options: <New: NO, Old: NO, Prior: NO> Context: 0x100f2930c, Property: 0x17025d940>
)'
*** First throw call stack:
(0x1846541c0 0x18308c55c 0x184654108 0x1850a1df4 0x1830a5fe0 0x18452ddb8 0x18a718db0 0x18a7393bc 0x1846017dc 0x1845ff40c 0x1845ff89c 0x18452e048 0x185fb1198 0x18a500818 0x18a4fb550 0x10065f130 0x1835105b8)libc++abi.dylib: terminating with uncaught exception of type NSException
description:
  • You have to ensure that the view you will assign to inputView or inputAccessoryViewdoesn't belong to any parent view. When you create these views from a xib inside a ViewController, by default they are set as subviews of a superview.

solution:

  • Use the method removeFromSuperview on the view you will assign to inputView or inputAccessoryView
textView.inputView = myInputView;
[myInputView removeFromSuperview];
[textView becomeFirstResponder];







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