ASP.NET Boilerplate template project build error

0
votes

We are getting build errors in the startup template project downloaded from https://aspnetboilerplate.com/Templates

Downloaded startup template: ASP.NET Core 2.x Multi Page Web Application.

Errors:

  1. Error CS0234: The type or namespace name 'AspNetCore' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?) - MyCoreProject.Core - LoginManager.cs

  2. Error CS0246: The type or namespace name 'Abp' could not be found (are you missing a using directive or an assembly reference?) - MyCoreProject.Core - LoginManager.cs

  3. Error CS0308: The non-generic type 'PermissionChecker' cannot be used with type arguments - MyCoreProject.Core - PermissionChecker.cs

  4. Error CS1061: 'Type' does not contain a definition for 'GetAssembly' and no extension method 'GetAssembly' accepting a first argument of type 'Type' could be found (are you missing a using directive or an assembly reference?) - MyCoreProject.Core - AppVersionHelper.cs

  5. Package Microsoft.AspNetCore 2.0.1 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.AspNetCore 2.0.1 supports: netstandard2.0 (.NETStandard,Version=v2.0)

  6. Package Microsoft.VisualStudio.Web.CodeGenerators.Mvc 2.0.2 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.VisualStudio.Web.CodeGenerators.Mvc 2.0.2 supports: netstandard2.0 (.NETStandard,Version=v2.0)

  7. Package Microsoft.AspNetCore.Mvc 2.0.2 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.AspNetCore.Mvc 2.0.2 supports: netstandard2.0 (.NETStandard,Version=v2.0)

  8. One or more packages are incompatible with .NETCoreApp,Version=v2.0.

  9. One or more packages are incompatible with .NETCoreApp,Version=v1.0.

  10. Package Microsoft.AspNetCore.Authentication.Cookies 2.0.1 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.AspNetCore.Authentication.Cookies 2.0.1 supports: netstandard2.0 (.NETStandard,Version=v2.0)

  11. Package Abp.ZeroCore.EntityFrameworkCore 3.5.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Abp.ZeroCore.EntityFrameworkCore 3.5.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)

3
visual-studioasp.net-corenuget.net-standardaspnetboilerplate
Do you have EF Core 2 on your machine? – vivek nuna
What is your Visual Studio version? – Alper Ebicoglu
@R Sive, Any update for this issue? Have you resolved this issue? If not, would you please let me know the latest information about this issue? – Leo Liu-MSFT

3 Answers

1
votes

I think you have an older version of Visual Studio, Following tools, are needed in order to use solution:

  1. Visual Studio 2017 v15.3.5+
  2. Visual Studio Extensions: Web Compiler and Typescript 2.0+
  3. nodejs 6.9+ with npm 3.10+
  4. gulp (must be installed globally)
  5. yarn
  6. SQL Server

Please Refer PRE REQUIREMENTS documentation.

0
votes

ASP.NET Boilerplate template project build error

After created and downloaded your project, you still need to follow the below steps to run your application:

  • Open your solution in Visual Studio 2017 v15.3.5+ and build the solution.

  • Select the 'Web.Host' project as the startup project.

  • Check the connection string in the appsettings.json file of the Web.Host - project, change it if you need to.
  • Open the Package Manager Console and run an Update-Database command to create your database (ensure that the Default project is selected as .EntityFrameworkCore in the Package Manager Console window).
  • Run the application. It will show swagger-ui if it is successful.

Note:If you have problems with running the application, close and then re-open Visual Studio again. It sometimes fails on the first package restore.

There are also have some requirements you have to prepare before you run this app:

  • nodejs 6.9+ with npm 3.10+
  • Typescript 2.0+

Then restore the npm packages:

npm install

For some more details info, please check the Documents for Startup Template Angular.

0
votes
1) Install-Package EntityFramework
2) Add the below line in cs Projects
<ItemGroup>
    <Reference Include="netstandard" />
  </ItemGroup>
3) install netstandard from Nuget.
4)install this using package manager console 

Install-Package NETStandard.Library.NETFramework -Version 2.0.0-preview1-25305-02 -Pre
Install-Package NETStandard.Library.NETFramework -Version 2.0.0-preview2-25405-01 -Pre

5) Select the 'Web' project as the startup project.
6) Open the Package Manager Console, select the 'EntityFramework' project as the Default project and run EntityFramework's 'Update-Database' command. This will create the database. You can then change the connection string in the web.config.
7) Run the application. The default user name is 'admin' and the password is '123qwe'.