当我第一次安装VS2017 RTM并尝试创建一个新的.NET Core应用程序时，我遇到了7个错误，但它没有用。因此，根据在线的一些建议，我删除了所有的.NET核心软件包和VS2017。然后在选择.NET Core工作负载后安装了新的VS2017。
然后我再次执行New Project步骤：Visual C＃/ .NET Core / ASP.NET核心Web应用程序（.NET Core）/ Web应用程序。
这仍会产生下面列出的7个错误。我该如何解决这个问题？
Error Package System.Diagnostics.TraceSource 4.0.0 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package System.Diagnostics.TraceSource 4.0.0 supports:
- monoandroid10 (MonoAndroid,Version=v1.0)
- monotouch10 (MonoTouch,Version=v1.0)
- netstandard1.3 (.NETStandard,Version=v1.3)
- xamarinios10 (Xamarin.iOS,Version=v1.0)
- xamarinmac20 (Xamarin.Mac,Version=v2.0)
- xamarintvos10 (Xamarin.TVOS,Version=v1.0)
- xamarinwatchos10 (Xamarin.WatchOS,Version=v1.0)
Error Package Microsoft.Extensions.DiagnosticAdapter 1.0.0 is not compatible with netcoreapp1.1 (.NETCoreApp,Version=v1.1). Package Microsoft.Extensions.DiagnosticAdapter 1.0.0 supports: netstandard1.1 (.NETStandard,Version=v1.1)
Error One or more packages are incompatible with .NETCoreApp,Version=v1.1.
Error Package System.Xml.XmlSerializer 4.0.11 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package System.Xml.XmlSerializer 4.0.11 supports:
- monoandroid10 (MonoAndroid,Version=v1.0)
- monotouch10 (MonoTouch,Version=v1.0)
- net45 (.NETFramework,Version=v4.5)
- netcore50 (.NETCore,Version=v5.0)
- netstandard1.0 (.NETStandard,Version=v1.0)
- netstandard1.3 (.NETStandard,Version=v1.3)
- portable-net45+win8+wp8+wpa81 (.NETPortable,Version=v0.0,Profile=Profile259)
- win8 (Windows,Version=v8.0)
- wp8 (WindowsPhone,Version=v8.0)
- wpa81 (WindowsPhoneApp,Version=v8.1)
- xamarinios10 (Xamarin.iOS,Version=v1.0)
- xamarinmac20 (Xamarin.Mac,Version=v2.0)
- xamarintvos10 (Xamarin.TVOS,Version=v1.0)
- xamarinwatchos10 (Xamarin.WatchOS,Version=v1.0)
Error One or more packages are incompatible with .NETCoreApp,Version=v1.0.
Error Package System.Xml.XPath.XmlDocument 4.0.1 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package System.Xml.XPath.XmlDocument 4.0.1 supports:
- monoandroid10 (MonoAndroid,Version=v1.0)
- monotouch10 (MonoTouch,Version=v1.0)
- netstandard1.3 (.NETStandard,Version=v1.3)
- xamarinios10 (Xamarin.iOS,Version=v1.0)
- xamarinmac20 (Xamarin.Mac,Version=v2.0)
- xamarintvos10 (Xamarin.TVOS,Version=v1.0)
- xamarinwatchos10 (Xamarin.WatchOS,Version=v1.0)
Error Package System.Runtime.Serialization.Xml 4.1.1 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package System.Runtime.Serialization.Xml 4.1.1 supports:
- monoandroid10 (MonoAndroid,Version=v1.0)
- monotouch10 (MonoTouch,Version=v1.0)
- net45 (.NETFramework,Version=v4.5)
- netcore50 (.NETCore,Version=v5.0)
- netstandard1.0 (.NETStandard,Version=v1.0)
- netstandard1.3 (.NETStandard,Version=v1.3)
- portable-net45+win8+wp8+wpa81 (.NETPortable,Version=v0.0,Profile=Profile259)
- win8 (Windows,Version=v8.0)
- wp8 (WindowsPhone,Version=v8.0)
- wpa81 (WindowsPhoneApp,Version=v8.1)
- xamarinios10 (Xamarin.iOS,Version=v1.0)
- xamarinmac20 (Xamarin.Mac,Version=v2.0)
- xamarintvos10 (Xamarin.TVOS,Version=v1.0)
- xamarinwatchos10 (Xamarin.WatchOS,Version=v1.0)
.csproj文件如下：
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>netcoreapp1.0</TargetFramework>
</PropertyGroup>
<PropertyGroup>
<PackageTargetFallback>$(PackageTargetFallback);portable-net45+win8+wp8+wpa81;</PackageTargetFallback>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.0.0" />
<PackageReference Include="Microsoft.AspNetCore" Version="1.0.4" />
<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.0.3" />
<PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.0.2" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.0.2" />
<PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="1.0.1" />
</ItemGroup>
<ItemGroup>
<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.0" />
</ItemGroup>
</Project>