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dotnet run looks for net451 reference assemblies when trying to run netcoreapp1.0

See original GitHub issue

Start with an app that targets net451 and netcoreapp1.0. Run dotnet restore, followed by dotnet run -f netcoreapp1.0.

Expected: App runs with netcoreapp1.0

Actual: dotnet run fails with

The current project is not valid because of the following errors:
/home/release/test111/project.json(0,0): error DOTNET1012: The reference assemblies directory was not specified. You can set the location using the DOTNET_REFERENCE_ASSEMBLIES_PATH environment variable.

Removing net451 from the project.json and re-running after restoring fixes this. Perhaps it should check for reference assemblies later on?

 ~/.dotnet/dotnet --info
.NET Command Line Tools (1.0.0-preview2-003119)

Product Information:
 Version:            1.0.0-preview2-003119
 Commit SHA-1 hash:  0708fe095e

Runtime Environment:
 OS Name:     centos
 OS Version:  7
 OS Platform: Linux
 RID:         centos.7-x64

Issue Analytics

State:
Created 7 years ago
Reactions:3
Comments:8 (1 by maintainers)

Top GitHub Comments

3reactions

ddrinkacommented, Nov 30, 2016

I’ve found a simple workaround for this issue: mkdir -p /usr/lib/mono/xbuild-frameworks/.NETFramework/v4.5.1

There’s no need to actually install mono. Just create a folder for the .Net framework version you “need”, and publish using -f netcoreapp1.0. It will succeed.

If you want to create a complete list of available frameworks, the Debian package xbuild-frameworks 4.6.2.7-0xamarin2 contains the following:

root@2b4c894ee4a0:/usr/lib/mono/xbuild-frameworks/.NETFramework# ls
v2.0  v3.0  v3.5  v4.0  v4.5  v4.5.1  v4.5.2  v4.6  v4.6.1

0reactions

mattjohnsonpintcommented, Dec 20, 2016

I am using Ubuntu, BTW, not OSX, and it specifically occurs during a dotnet publish, unless the directories exist. dotnet build seems to work fine.

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