c# - Xamarin 安卓 : Self-contradicting dependency requirements?

Question

尝试在 Xamarin Studio 中构建我的 Android 项目时，我不断收到如下错误:

C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2,2): 
Error: Exception while loading assemblies: System.IO.FileNotFoundException: 
Could not load assembly 'Mono.Android.Support.v4, Version=0.0.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065'. 
Perhaps it doesn't exist in the Mono for Android profile?
File name: 'Mono.Android.Support.v4.dll'
   at Xamarin.Android.Tuner.DirectoryAssemblyResolver.Resolve(AssemblyNameReference reference, ReaderParameters parameters)
   at Xamarin.Android.Tasks.ResolveAssemblies.AddAssemblyReferences(ICollection`1 assemblies, AssemblyDefinition assembly, Boolean topLevel)
   at Xamarin.Android.Tasks.ResolveAssemblies.Execute() (Akva20150407)

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C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2,2): 
Error: Exception while loading assemblies: System.IO.FileNotFoundException: 
Could not load assembly 'Xamarin.Android.Support.v4, Version=1.0.0.0, Culture=neutral, PublicKeyToken='. 
Perhaps it doesn't exist in the Mono for Android profile?
File name: 'Xamarin.Android.Support.v4.dll'
   at Xamarin.Android.Tuner.DirectoryAssemblyResolver.Resolve(AssemblyNameReference reference, ReaderParameters parameters)
   at Xamarin.Android.Tasks.ResolveAssemblies.AddAssemblyReferences(ICollection`1 assemblies, AssemblyDefinition assembly, Boolean topLevel)
   at Xamarin.Android.Tasks.ResolveAssemblies.Execute() (Akva20150407)

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C:\progge\Apper\Akva20150407\Akva20150407\Act_MainGUI.cs(29,29): 
Error CS0433: The type 'Android.Support.V4.App.FragmentActivity' exists in both 
'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v5.0\Mono.Android.Support.v4.dll' and 
'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v5.0\Xamarin.Android.Support.v4.dll' 
(CS0433) (Akva20150407)

• 我必须将 Xamarin.Android.Support.v4 添加到 MonoAndroid 文件夹，否则它会提示找不到它。
• 我必须将 Mono.Android.Support.v4 添加到 MonoAndroid 文件夹，否则它会提示找不到它。
• 如果我同时添加两者，它会提示在两个包中都可以找到 FragmentActivity。
• 这些包是通过 NuGet 安装的。

它看起来非常自相矛盾......我到底应该怎么做才能让它工作？

Answer 1

升级您的 Xamarin Studio

此错误已在 Xamarin Studio 中修复:5.7.0.436。查看错误报告:https://bugzilla.xamarin.com/show_bug.cgi?id=24276