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dotnet tool update - error: Sequence contains more than one matching element

See original GitHub issue

Trying to run: dotnet tool update --global <name of internal Nuget hosted in Azure DevOps artifacts>

Works perfectly running locally, but when run on our build servers (self hosted pool) in Azure DevOps, we sometimes get this error:

Sequence contains more than one matching element
at System.Linq.ThrowHelper.ThrowMoreThanOneMatchException()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.DotNet.ToolPackage.ToolPackageInstance.FindLibraryInLockFile(LockFile lockFile, PackageId id)

Same error when using: dotnet tool install

Any idea what is causing this exception? - can’t debug and the error message is really not that helpful.

Issue Analytics

State:
Created 4 years ago
Comments:10 (2 by maintainers)

Top GitHub Comments

4reactions

pksorensencommented, Apr 14, 2020

I found out that the problem was due to having a variable: RuntimeIdentifier in my yaml file caused this to blow up, changing my variable name the problem did go away.

So maybe build agents sets environment variables that blow up dotnet tools install.

1reaction

livarcocccommented, Oct 29, 2019

@wli3 can you take a look?