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Azure Pipelines–DotNet restore error

After configuring a new build pipeline, the build failed with the following error when trying to execute the dotnet restore build task:

NuGet.targets(124,5): error :  Unable to load the service index for source http://tfs:8080/DefaultCollection/_packaging/Feed/nuget/v3/index.json

NuGet.targets(124,5): error :  No credentials are available in the security package

The strange thing was that the same task worked without a problem on other builds. Only for newly created builds it failed with the error message above.

A workaround that seemed to work was to switch the dotnet build task to the ‘custom’ command. By using the custom command I can add an extra ‘--force’ arguments to the ‘dotnet restore’ command. By adding this extra argument I got rid of the error message above.

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