PM> install-package entityframework.microsoftsqlserver -pre
Installing 'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final'.
You are downloading EntityFramework.MicrosoftSqlServer from Microsoft, the license agreement to which is available at http://www.microsoft.com/web/webpi/eula/net_library_eula_enu.htm. Check the package for additional dependencies, which may come with their own license agreement(s). Your use of the package and dependencies constitutes your acceptance of their license agreements. If you do not accept the license agreement(s), then delete the relevant components from your device.
Successfully installed 'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final'.
Adding 'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final' to entity-framework.
Uninstalling 'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final'.
Successfully uninstalled 'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final'.
Install failed. Rolling back...
install-package : Could not install package
'EntityFramework.MicrosoftSqlServer 7.0.0-rc1-final'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.5', but the package does not contain any assembly references or
content files that are compatible with that framework. For more information, contact the package author.
At line:1 char:1
+ install-package entityframework.microsoftsqlserver -pre
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Install-Package], InvalidOperationException
+ FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand