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Xamarin.Forms无法编译Android工程

c#androidxamarin.forms
5

在Mac上更新到VS 8.9.1后，我在编译Android项目时遇到了以下错误：

    /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Tooling.targets(5,5): Error XARSD7023: System.IO.DirectoryNotFoundException: Could not find a part of the path '/Users/giulioserra/Library/Android/sdk'.
  at System.IO.Enumeration.FileSystemEnumerator`1[TResult].CreateDirectoryHandle (System.String path, System.Boolean ignoreNotFound) [0x00032] in <36514b14425c4337b446653c547aa9c3>:0 
  at System.IO.Enumeration.FileSystemEnumerator`1[TResult]..ctor (System.String directory, System.IO.EnumerationOptions options) [0x00048] in <36514b14425c4337b446653c547aa9c3>:0 
  at System.IO.Enumeration.FileSystemEnumerable`1+DelegateEnumerator[TResult]..ctor (System.IO.Enumeration.FileSystemEnumerable`1[TResult] enumerable) [0x00000] in <36514b14425c4337b446653c547aa9c3>:0 
  at System.IO.Enumeration.FileSystemEnumerable`1[TResult]..ctor (System.String directory, System.IO.Enumeration.FileSystemEnumerable`1+FindTransform[TResult] transform, System.IO.EnumerationOptions options) [0x00042] in <36514b14425c4337b446653c547aa9c3>:0 
  at System.IO.Enumeration.FileSystemEnumerableFactory.UserDirectories (System.String directory, System.String expression, System.IO.EnumerationOptions options) [0x00014] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/external/corefx/src/System.IO.FileSystem/src/System/IO/Enumeration/FileSystemEnumerableFactory.cs:104 
  at System.IO.Directory.InternalEnumeratePaths (System.String path, System.String searchPattern, System.IO.SearchTarget searchTarget, System.IO.EnumerationOptions options) [0x00045] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/external/corefx/src/System.IO.FileSystem/src/System/IO/Directory.cs:180 
  at System.IO.Directory.EnumerateDirectories (System.String path, System.String searchPattern, System.IO.EnumerationOptions enumerationOptions) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/external/corefx/src/System.IO.FileSystem/src/System/IO/Directory.cs:196 
  at System.IO.Directory.EnumerateDirectories (System.String path, System.String searchPattern, System.IO.SearchOption searchOption) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/external/corefx/src/System.IO.FileSystem/src/System/IO/Directory.cs:193 
  at Xamarin.Android.Tools.AndroidSdkBase.FindBestNDK (System.String androidSdkPath) [0x00038] in /Users/builder/azdo/_work/278/s/xamarin-android/external/xamarin-android-tools/src/Xamarin.Android.Tools.AndroidSdk/Sdks/AndroidSdkBase.cs:172 
  at Xamarin.Android.Tools.AndroidSdkBase+<GetAllAvailableAndroidNdks>d__73.MoveNext () [0x000d0] in /Users/builder/azdo/_work/278/s/xamarin-android/external/xamarin-android-tools/src/Xamarin.Android.Tools.AndroidSdk/Sdks/AndroidSdkBase.cs:164 
  at Xamarin.Android.Tools.AndroidSdkBase.GetValidNdkPath (System.String ctorParam) [0x00068] in /Users/builder/azdo/_work/278/s/xamarin-android/external/xamarin-android-tools/src/Xamarin.Android.Tools.AndroidSdk/Sdks/AndroidSdkBase.cs:128 
  at Xamarin.Android.Tools.AndroidSdkBase.Initialize (System.String androidSdkPath, System.String androidNdkPath, System.String javaSdkPath) [0x00061] in /Users/builder/azdo/_work/278/s/xamarin-android/external/xamarin-android-tools/src/Xamarin.Android.Tools.AndroidSdk/Sdks/AndroidSdkBase.cs:71 
  at Xamarin.Android.Tools.AndroidSdkInfo..ctor (System.Action`2[T1,T2] logger, System.String androidSdkPath, System.String androidNdkPath, System.String javaSdkPath) [0x00025] in /Users/builder/azdo/_work/278/s/xamarin-android/external/xamarin-android-tools/src/Xamarin.Android.Tools.AndroidSdk/AndroidSdkInfo.cs:18 
  at Xamarin.Android.Tasks.MonoAndroidHelper.RefreshAndroidSdk (System.String sdkPath, System.String ndkPath, System.String javaPath, Microsoft.Build.Utilities.TaskLoggingHelper logHelper) [0x00005] in <e0b267300cf54583bbaa8d3ab5dc4081>:0 
  at Xamarin.Android.Tasks.ResolveSdks.RunTask () [0x000ac] in <e0b267300cf54583bbaa8d3ab5dc4081>:0 
  at Xamarin.Android.Tasks.AndroidTask.Execute () [0x00000] in <e0b267300cf54583bbaa8d3ab5dc4081>:0  (XARSD7023) (HangoverBusiness.Android)

我尝试删除bin和obj文件，但是没有效果。这个问题只在Android项目中出现，而IOS版本运行正常。

环境： Mac OS Catalina VS 8.9.1

有什么提示吗？

3个回答
9
我遇到了同样的问题。安装了那个预览版之后，Visual Studio无法识别Android SDK。我完全被卡住了。:( - DLL_Whisperer
这对我解决了问题。 - Giulio Serra
这对我也解决了问题。 - Alexey Shikov
5

查看开发者社区门户网站这是一个错误，它是在v8.9.1中引入的。它还指定了一个解决方法：手动从默认路径（在设置屏幕中找到，见下文）复制Android SDK文件到错误消息中硬编码的路径。 在您的情况下，路径为/Users/giulioserra/Library/Android/sdk

Android默认SDK路径

非常感谢您的回答，您真是太棒了！但您能否更具体地说明一下？我在哪里可以编辑Android SDK路径？谢谢。 - Giulio Serra
更新了答案，希望这样更清楚了。如果有帮助，请不要忘记接受答案 :) - Gerald Versluis
0
我不再复制文件，而是使用符号链接来更好地管理Android SDK，因为我需要在多个应用程序和用户之间共享。这样可以节省很多磁盘空间。符号链接的解决方案对我很有用。
ln -s /Path/to/real/sdk /Path/from/error/message
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