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MSBUILD : error MSB1006: Property is not valid. Switch: /m:1

See original GitHub issue

Using a .NET 6 SDK I installed this morning (6.0.100-alpha.1.20574.4):

dotnet new console
dotnet restore /p:DebugType=portable /p:UseSharedCompilation=false /p:BuildInParallel=false /m:1 /p:Deterministic=true /p:Optimize=true

results in:

MSBUILD : error MSB1006: Property is not valid.
Switch: /m:1

For switch syntax, type "MSBuild -help"

If the /m:1 is moved to the beginning of the options:

dotnet new console
dotnet restore /m:1 /p:DebugType=portable /p:UseSharedCompilation=false /p:BuildInParallel=false /p:Deterministic=true /p:Optimize=true

then it succeeds.

This is breaking benchmark.net.

cc: @adamsitnik

Issue Analytics

State:
Created 3 years ago
Reactions:2
Comments:10 (10 by maintainers)

Top GitHub Comments

1reaction

sfoslundcommented, Dec 1, 2020

Actually it looks like we haven’t had a SDK-> installer insertion since Tuesday. This PR should fix that, I’ll try to get it unstuck: https://github.com/dotnet/installer/pull/9172

1reaction

billwertcommented, Dec 1, 2020

@sfoslund I’m still seeing this error in version 6.0.100-alpha.1.20574.5 from dotnet/installer. Here is a helix log from this afternoon. Presumably this fix should have flowed into installer by now?