Using NuGet v3 api with AppVeyor - nuget

Question

After we upgraded our web application to asp.net core 1.0 we're unable to get a successfull build within Appveyor.
There are several nuget packages issues, the first error is:
Microsoft.AspNetCore.Mvc 1.0.0 is not compatible with .NETCoreApp,Version=v1.0.
On of the feed that is used is https://www.nuget.org/api/v2 and we think it should use the V3 version to be able to build core 1.0 web projects.
Is our assumption correct and how do we force appveyor to use the v3 api instead v2?
How do we get a successful build for our asp.net core 1.0 project?
UPDATE
Our assumption seems not to be correct, with the command
nuget sources update -Name nuget.org -Source https://api.nuget.org/v3/index.json
the new v3 feed is successfully used but the build still fails with the same errors.
dotnet information from build-server:
.NET Command Line Tools (1.0.0-preview2-003121)
Product Information:
Version: 1.0.0-preview2-003121
Commit SHA-1 hash: removed
Runtime Environment:
OS Name: Windows
OS Version: 6.3.9600
OS Platform: Windows
RID: win81-x64
And our project.json:
{
"dependencies": {
"Microsoft.NETCore.App": {
"version": "1.0.0",
"type": "default"
},
"Microsoft.AspNetCore.Diagnostics": "1.0.0",
"Microsoft.AspNetCore.Mvc": "1.0.0",
"Microsoft.AspNetCore.Razor.Tools": {
"version": "1.0.0-preview2-final",
"type": "build"
},
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
"Microsoft.AspNetCore.StaticFiles": "1.0.0",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
"Microsoft.Extensions.Configuration.Json": "1.0.0",
"Microsoft.Extensions.Logging": "1.0.0",
"Microsoft.Extensions.Logging.Console": "1.0.0",
"Microsoft.Extensions.Logging.Debug": "1.0.0",
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0"
},
"tools": {
"Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final",
"Microsoft.DotNet.Watcher.Tools": "1.0.0-preview2-final",
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
},
"frameworks": {
"netcoreapp1.0": {}
},
"buildOptions": {
"emitEntryPoint": true,
"preserveCompilationContext": true,
"compile": {
"exclude": [
"wwwroot",
"node_modules"
]
}
},
"runtimes": {
"win10-x64": {}
},
"runtimeOptions": {
"configProperties": {
"System.GC.Server": true
}
},
//"publishExclude": [
// "**.user",
// "**.vspscc"
//],
"publishOptions": {
"include": [
"wwwroot",
"Views",
"Areas/**/Views",
"appsettings.json",
"web.config"
]
},
"scripts": {
"postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
}
}
And global.json
{
"projects": [ "src", "test" ],
"sdk": {
"version": "1.0.0-preview2-003121"
}
}

Answer 1

Try updating nuget source during the build with this command:
nuget sources update -Name nuget.org -Source https://api.nuget.org/v3/index.json