mac安装fiddler以及问题解决

Downloading Fiddler for OS X Beta...

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Getting started

1. If you don’t have the Mono framework installed on your Mac

   Please download it from http://www.mono-project.com/download/#download-mac and install it. If you already have it installed, ensure you’re running the latest version.

2. If you just installed Mono

   Please open Terminal and type in:

   /Library/Frameworks/Mono.framework/Versions/<Mono Version>/bin/mozroots --import --sync

   (The Mono framework has its own trusted root certificates store. Currently (at mono version 4.2.4) this store remains empty after installing Mono on OS X. Fiddler uses the certificates in this store to validate the certificates of the websites visited. So you need to populate this store with a set of commonly trusted root authorities to avoid getting constant certificate warnings from Fiddler. The mozroots tool imports trusted authorities from the Mozilla LXR. )

3. Extract fiddler-mac.zip to a folder you have write access to.

   It is recommended that the full path to Fiddler install folder does not contain any Windows path illegal characters. (At present it is possible that some Fiddler functionality, e.g. various file exports or Fiddler Script won’t handle such paths.)

4. Open Terminal and navigate to the folder you extracted to in step 3.

    

5. Type mono Fiddler.exe in Terminal.

    

To further understand the benefits and limitations of Fiddler for OS X please visit this blog post.

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invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

解决方法：

打开终端输入
xcode-select --install
回车后，系统弹出下载xcode，点击确认，下载完成后即可。（实际上不是下载xcode，可能下载xcode有关插件，下载时长约1分钟）
出现这个错误原因猜想可能是因为之前安装过xcode卸载后出现的。

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Got a SIGSEGV while executing native code. This usually indicates

a fatal error in the mono runtime or one of the native libraries 

used by your application.

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You have to pass --arch=32 to the mono command. This is needed because Mono 64-bit does not support WinForms.

mono --arch=32 Fiddler.exe