Can DotNetCoreCLI build solution?

Question

I have tried in my azure build pipeline to set a DotNetCoreCLI build task to build a solution but I just get an error:

MSBUILD : error MSB1011: Specify which project or solution file to use because this folder contains more than one project or solution file. ##[error]Error: The process 'D:\WorkLib\DkDep372\Default_Win2019\1_tool\dotnet\dotnet.exe' failed with exit code 1

even though I specify solution like this:

variables:
  solution: '**/MyWebApp.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'

steps:
- task: DotNetCoreCLI@2
  displayName: 'dotnet build'
  inputs:
    command: 'build'
    solution: '$(solution)'
    configuration: $(buildConfiguration)

So my question is if DotNetCoreCLI can build a solution of it just can build projects?

This page indicates that it can. This page says something about projects but not about solutions. I havn't been able to find a single example with a build with a specified solution.

"because this folder contains more than one project or solution file". — Lex Li
– Lex Li, Commented Feb 26, 2021 at 17:23
@LexLi - but I have specified the solution... - see variables above. — Erik Thysell
– Erik Thysell, Commented Feb 26, 2021 at 18:50

Rob Bos · Accepted Answer · 2021-02-26 19:26:55Z

2

dotnet build either expects either a projectfile, a solution file or nothing. When you give it no additional parameter then it will search the current directory for a project or solution file.

When you give it a file, you need to give the path to the file. In this case, you are giving it a minimatch pattern (**) to find the file, which doesn't work.

Try to run it in the correct directory or specify the full path to the file.

answered Feb 26, 2021 at 19:26

Rob Bos

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3 Comments

Erik Thysell Over a year ago

I thought the minimatch pattern was enough as a filename, but thanks for the explanation and tip I'll try that

Erik Thysell Over a year ago

It's interesting for the minimatch pattern works with other commands (such as VSBuild) and with dotnet build and project files (I.e. **/MyWebbApp.csproj)

Rob Bos Over a year ago

VSBuild is a different tool with different parameters. dotnet can either compile a singel solution or multiple projects. VSBuild can handle mutliple solution files IIRC, seems that they didn't port that over.

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