install-package Microsoft.Owin.Host.SystemWeb失败

我正在通过关于OAuth2的 Pluralsight课程,并为解决方案添加了一个项目.

我使用了一个新的Asp.Net 4.5.2空模板,我将SSL设置为true.我将框架设置回4.5以与解决方案中的其他项目保持一致.

我在Package Manager控制台中运行以下命令:

PM> install-package Microsoft.Owin.Host.SystemWeb

错误是:

Install-Package : Unable to find package 'Microsoft.Owin.Host.SystemWeb'At line:1 char:1
+ install-package Microsoft.Owin.Host.SystemWeb
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Install-Package], Exception
    + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand

在研究了这个问题后,我尝试从课程中添加该版本.结果如下:

PM> install-package Microsoft.Owin.Host.SystemWeb -Version 3.0.1
Attempting to gather dependencies information for package 'Microsoft.Owin.Host.SystemWeb.3.0.1' with respect to project 'TripCompany.IdentityServer', targeting '.NETFramework,Version=v4.5'
Install-Package : Package 'Microsoft.Owin.Host.SystemWeb' is not found in the following primary source(s): 'E:\EShared\NuGet'. Please verify all your online 
package sources are available.At line:1 char:1
+ install-package Microsoft.Owin.Host.SystemWeb -Version 3.0.1
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Install-Package], Exception
    + FullyQualifiedErrorId 

Kirsten Gree.. 9

事实证明我没有将我的包源设置为nuget.org

在VS2015中,我使用了Tools-> Nuget Package Manager - > Package Manager Settings,然后在可用的包源中选择了Nuget Package Manager - > Package Sources并检查了nuget.org.

事实证明我没有将我的包源设置为nuget.org

在VS2015中,我使用了Tools-> Nuget Package Manager - > Package Manager Settings,然后在可用的包源中选择了Nuget Package Manager - > Package Sources并检查了nuget.org.