Install error on visual studio 2015 preview ctp6

version is 6.1.3, this error will happen every time I install since 7.0 is unlisted on nuget recent, so I can’t test 7.0.

error information

Executing script file 'D:\helloworld\packages\EntityFramework.6.1.3\tools\install.ps1'...
Initialize-EFConfiguration : The term 'Initialize-EFConfiguration' is not recognized as the name of a cmdlet, function,
 script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is c
orrect and try again.
At D:\helloworld\packages\EntityFramework.6.1.3\tools\install.ps1:3 char:1
+ Initialize-EFConfiguration $project
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Initialize-EFConfiguration:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Add-EFProvider : The term 'Add-EFProvider' is not recognized as the name of a cmdlet, function, script file, or operabl
e program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At D:\helloworld\packages\EntityFramework.6.1.3\tools\install.ps1:4 char:1
+ Add-EFProvider $project 'System.Data.SqlClient' 'System.Data.Entity.SqlServer.Sq ...
+ ~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Add-EFProvider:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException


Type 'get-help EntityFramework' to see all available Entity Framework commands.

[bryanvanrijn]

Try downgrading EF to 6.1.2

[rowanmiller]

The original issue this bug was tracking has been resolved and I have just tested on VS2015 Update 1 and not been able to reproduce any issues.

If you are seeing the failure, can you open a new issue with the Visual Studio and NuGet version numbers, as well as the output from Package Manager Console.