我已使用.angle模板(带有Angular的ASP.NET Core)在.NET Core中创建了SPA应用程序。 dotnet --info提供:
https://towardsdatascience.com/hyperparameter-optimization-with-keras-b82e6364ca53
应用程序按预期执行。然后我添加了Entity Framework Core 2.1.0-preview2-final,然后开始出现以下错误:
.csproj文件的内容是:
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>netcoreapp2.1</TargetFramework>
<TypeScriptCompileBlocked>true</TypeScriptCompileBlocked>
<TypeScriptToolsVersion>Latest</TypeScriptToolsVersion>
<RuntimeFrameworkVersion>2.1.1</RuntimeFrameworkVersion>
<PlatformTarget>AnyCPU</PlatformTarget>
<IsPackable>false</IsPackable>
<SpaRoot>ClientApp\</SpaRoot>
<DefaultItemExcludes>$(DefaultItemExcludes);$(SpaRoot)node_modules\**</DefaultItemExcludes>
<!-- Set this to true if you enable server-side prerendering -->
<BuildServerSideRenderer>false</BuildServerSideRenderer>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.0-preview2-final" />
<PackageReference Include="Microsoft.AspNetCore.SpaServices.Extensions" Version="2.1.0-preview2-final" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.1.0-preview2-final" />
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.1.0-preview2-final" />
</ItemGroup>
<ItemGroup>
<!-- Don't publish the SPA source files, but do show them in the project files list -->
<Content Remove="$(SpaRoot)**" />
<None Include="$(SpaRoot)**" Exclude="$(SpaRoot)node_modules\**" />
</ItemGroup>
<Target Name="DebugEnsureNodeEnv" BeforeTargets="Build" Condition=" '$(Configuration)' == 'Debug' And !Exists('$(SpaRoot)node_modules') ">
<!-- Ensure Node.js is installed -->
<Exec Command="node --version" ContinueOnError="true">
<Output TaskParameter="ExitCode" PropertyName="ErrorCode" />
</Exec>
<Error Condition="'$(ErrorCode)' != '0'" Text="Node.js is required to build and run this project. To continue, please install Node.js from https://nodejs.org/, and then restart your command prompt or IDE." />
<Message Importance="high" Text="Restoring dependencies using 'npm'. This may take several minutes..." />
<Exec WorkingDirectory="$(SpaRoot)" Command="npm install" />
</Target>
<Target Name="PublishRunWebpack" AfterTargets="ComputeFilesToPublish">
<!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
<Exec WorkingDirectory="$(SpaRoot)" Command="npm install" />
<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build -- --prod" />
<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build:ssr -- --prod" Condition=" '$(BuildServerSideRenderer)' == 'true' " />
<!-- Include the newly-built files in the publish output -->
<ItemGroup>
<DistFiles Include="$(SpaRoot)dist\**; $(SpaRoot)dist-server\**" />
<DistFiles Include="$(SpaRoot)node_modules\**" Condition="'$(BuildServerSideRenderer)' == 'true'" />
<ResolvedFileToPublish Include="@(DistFiles->'%(FullPath)')" Exclude="@(ResolvedFileToPublish)">
<RelativePath>%(DistFiles.Identity)</RelativePath>
<CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
</ResolvedFileToPublish>
</ItemGroup>
</Target>
</Project>
有人可以向我解释如何解决此问题。我的系统是Mac。我正在使用VS Code作为编辑器。
答案 0 :(得分:0)
卸载软件包,然后尝试稳定的2.1.1版。
uninstall-package Microsoft.EntityFrameworkCore
install-package Microsoft.EntityFrameworkCore
参见此处:nuget.org/packages/Microsoft.EntityFrameworkCore