`dotnet pack` produces no output or error

[vadi2]

While my .csproj has the required properties:

    <PackAsTool>true</PackAsTool>
    <ToolCommandName>hammer</ToolCommandName>
    <PackageOutputPath>./nupkg</PackageOutputPath>

dotnet pack nor dotnet pack --configuration Release on .NET 5.0.301 produces no output at all:

chromebook@penguin:~/Programs/Hammer$ dotnet pack
Microsoft (R) Build Engine version 16.10.1+2fd48ab73 for .NET
Copyright (C) Microsoft Corporation. All rights reserved.

  Determining projects to restore...
  All projects are up-to-date for restore.
chromebook@penguin:~/Programs/Hammer$ git diff
chromebook@penguin:~/Programs/Hammer$ 

What could be the possible cause of the problem?

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[vadi2]

Fixed by adding <IsPackable>true</IsPackable> to the .csproj.