dotnet publish on a default dotnetcore class lib fails

[vijayrkn]

Steps to reproduce

1. Create a .Net Core class library in VS
2. Go to commandline
3. dotnet restore
4. dotnet build
5. dotnet publish

Expected behavior

dotnet publish infers the runtime (in the default case)

Actual behavior

Can not find runtime target for framework '.NETStandard,Version=v1.6' compatible with one of the target runtimes: 'win10-x64, win81-x64, win8-x64, win7-x64'. Possible causes:

1. The project has not been restored or restore failed - run dotnet restore
2. The project does not list one of 'win10-x64, win81-x64, win8-x64, win7-x64' in the 'runtimes' section.
3. You may be trying to publish a library, which is not supported. Use dotnet pack to distribute libraries.

Environment data

dotnet --info output:
C:\git\ClassLibrary1\src\ClassLibrary1>dotnet --info
.NET Command Line Tools (1.0.0-preview2-003121)

Product Information:
Version: 1.0.0-preview2-003121
Commit SHA-1 hash: 1e9d529

Runtime Environment:
OS Name: Windows
OS Version: 10.0.10586
OS Platform: Windows
RID: win10-x64

[blackdwarf]

Closing this as "by design". The libraries cannot be published, they should be packed. The error from dotnet publish has the correct help text.