ios9系统无法下载应用问题分析与解决

苹果更新系统后，最近打包的ipa包在ios9系统上无法安装（ios8可以），

提示“无法下载应用”，经过一系列折腾解决了问题：

参考 http://www.cocoachina.com/bbs/read.php?tid-325154.html

基本提供了以下几种解决路径，下面是折腾的过程：

1. 首先怀疑是http和https的问题，苹果更新系统要求所有请求都变成https，所以怀疑下载过程也要求这样，很快排除；

2.清除手机safari缓存，验证无效，但可能某些场景有效；

3.恢复网络设置，验证无效，但可能某些场景有效；

4.恢复出厂设置，验证无效，但可能某些场景有效；

5. 怀疑ipa的bundle id和服务器的plist上的bundle id不一致

查看服务器的plist文件，发现确实是这个原因引起，修改使之与ipa的

bundle id一致，解决；

但是后来发现新问题：

更新到9.0.2时发现5s以上设备可以安装，5c不行，反复查看了上面的解决路径5中方法，不得解，使用工具http://fir.im/tools/log_guru （很棒的开发者自己写的工具，原理就是将itunes可以看到的设备上所有log输出），直接看安装失败的log ，如下：

09:38:07 itunesstored➜[Download]: Reprioritizing to high task: 4 for download: 4270672922564713524

09:38:08 itunesstored➜[Download]: Reprioritizing to high task: 4 for download: 4270672922564713524

09:38:16 nsurlsessiond➜SocketStream watchdog timer fired after 65.000000 seconds of inactivity. Timing out the connection.

09:38:16 itunesstored➜[Download]: Retry scheduled for task: 4, download: 4270672922564713524, error: Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo={NSErrorFailingURLStringKey=http://www.cmccim.com/resource/littlec_iOS_1.3.0.ipa, _kCFStreamErrorCodeKey=-2104, NSErrorFailingURLKey=http://www.cmccim.com/resource/littlec_iOS_1.3.0.ipa, NSLocalizedDescription=The request timed out., _kCFStreamErrorDomainKey=4}

09:38:17 itunesstored➜[Download]: Reset data consumer for task: 4, with resumption offset: 7810493

09:38:20 itunesstored➜[Download]: Download task did finish: 4 for download: 4270672922564713524

09:38:20 itunesstored➜[ApplicationWorkspace] Installing download: 4270672922564713524 with step(s): Install

09:38:20 itunesstored➜[ApplicationWorkspace]: Installing software package with bundleID: com.cmcchy.xiaoxi: bundleVersion: 1.3.0 path: /var/mobile/Media/Downloads/4270672922564713524/-556691672994417771

09:38:21 itunesstored➜[ApplicationWorkspace]: Bundle validated for bundleIdentifier: com.cmcchy.xiaoxi success: 1

09:38:21 itunesstored➜LaunchServices: installing app for existing placeholder <LSApplicationProxy: 0x14ee3dc0> com.cmcchy.xiaoxi (Placeholder) <file:///private/var/mobile/Containers/Bundle/Application/8AD346A2-0B79-4E3E-A623-13FE5328B10A/4270672922564713524.app>

09:38:21 itunesstored➜LaunchServices: Creating installProgressForApplication:<LSApplicationProxy: 0x14ee3dc0> com.cmcchy.xiaoxi (Placeholder) <file:///private/var/mobile/Containers/Bundle/Application/8AD346A2-0B79-4E3E-A623-13FE5328B10A/4270672922564713524.app> withPhase:1

09:38:21 installd➜0x40115000 -[MIClientConnection installPath:withOptions:completion:]: Install of "/var/mobile/Media/Downloads/4270672922564713524/-556691672994417771" type Customer requested by itunesstored (pid 310)

09:38:23 installd➜0x40081000 -[MIInstaller performInstallationWithError:]: Installing <MIInstallableBundle ID=com.cmcchy.xiaoxi; Version=1, ShortVersion=1.0>

09:38:24 profiled➜(Note ) MC: Provisioning profiles changed

09:38:24 profiled➜(Note ) MC: Updating MIS trust...

09:38:24 installd➜ SecTrustEvaluate [leaf IssuerCommonName SubjectCommonName]

09:38:26 online-auth-agent➜ SecTrustEvaluate [leaf AnchorTrusted]

09:38:27 installd➜0x40081000 MIMachOFileMatchesMyArchitecture: 310: Failed to find matching arch for 64-bit Mach-O input file /private/var/mobile/Library/Caches/com.apple.mobile.installd.staging/temp.KV3EvC/extracted/Payload/ChatDemo.app/ChatDemo

09:38:27 installd➜0x40081000 -[MIInstaller performInstallationWithError:]: Verification stage failed

09:38:28 itunesstored➜0x40081000 __MobileInstallationInstallForLaunchServices_block_invoke222: Returned error Error Domain=MIInstallerErrorDomain Code=15 "Failed to find matching arch for 64-bit Mach-O input file /private/var/mobile/Library/Caches/com.apple.mobile.installd.staging/temp.KV3EvC/extracted/Payload/ChatDemo.app/ChatDemo" UserInfo={LegacyErrorString=IncorrectArchitecture, FunctionName=MIMachOFileMatchesMyArchitecture, NSLocalizedDescription=Failed to find matching arch for 64-bit Mach-O input file /private/var/mobile/Library/Caches/com.apple.mobile.installd.staging/temp.KV3EvC/extracted/Payload/ChatDemo.app/ChatDemo, SourceFileLine=310}

09:38:28 itunesstored➜ERROR: MobileInstallationInstallForLaunchServices returned nil

09:38:28 itunesstored➜LaunchServices: installPhaseFinishedForProgress: com.cmcchy.xiaoxi.Installing - <NSProgress: 0x14debe10> : Parent: 0x0 / Fraction completed: 0.0000 / Completed: 0 of 100 called, removing progress from cache

09:38:28 itunesstored➜[ApplicationWorkspace]: Failed to install application: com.cmcchy.xiaoxi; /var/mobile/Media/Downloads/4270672922564713524/-556691672994417771; Error Domain=LaunchServicesError Code=0 "(null)" UserInfo={Error=IncorrectArchitecture, ErrorDescription=Failed to find matching arch for 64-bit Mach-O input file /private/var/mobile/Library/Caches/com.apple.mobile.installd.staging/temp.KV3EvC/extracted/Payload/ChatDemo.app/ChatDemo}

09:38:28 itunesstored➜[ApplicationWorkspace] Install complete for download: 4270672922564713524 result: Failed

09:38:28 itunesstored➜[Download]: Fail download: 4270672922564713524 after error: Error Domain=SSMobileInstallationErrorDomain Code=0 "(null)" UserInfo={SSErrorInstallErrorNameKey=IncorrectArchitecture}

所以怀疑是ipa打包配置需要改下，经分析可能是这里的问题：

将yes

将yes改为no，重新打包安装，解决~

猜测：可能是到9.0.2优先检查ipa的最高架构，假如支持了arm64就安装此架构到设备上，而iphone5c不支持arm64，这样就报了上面的错，修改这个配置就是让其不严格校验架构，可以兼容所有支持的架构。