EntityFramework package (not core), has bad frameworkassembly values

[rrelyea]

Steps to reproduce

originally filed as: NuGet/Home#3279
Repro Steps:

1. Create a new project C#-> Windows 8->Windows Runtime Component (Windows 8.1).
2. Right-click the project node and click "Manage NuGet Packages…" menu to start package manager.
3. Install package “EntityFramework”, and verify it can be installed.

Expected Result:
The package “EntityFramework” can be installed correctly.

Actual Result:
The package “EntityFramework” can’t be installed as below screenshot.

Note:
It happened on Dev14 U3+NuGet Dev 1731(3.6.0.1731).
It repro on any version of package “EntityFramework”.
It also repro on Dev14 U3 (NuGet 3.4.4.1321).

The issue

NuGet sees
<FrameworkAssembly ... TargetFramework="" />
TargetFramework should not be empty, but should be Net40 or Net45.

When you don't specify a framework, nuget thinks this works in all TFMs. Thus the package seemed to install on this Win8.1 project, while it should fail.

Further technical details

None.

[divega]

This issue was moved to dotnet/ef6#48