pipeline for SilverLight WPF application

[Sylvia Lobo]

I need to create a pipeline for Microsoft Silverlight applications that we have.My yml is as below  -

# This is a sample build configuration for .NET Core.# Check our guides at https://confluence.atlassian.com/x/5Q4SMw for more examples.# Only use spaces to indent your .yml configuration.# -----# You can specify a custom docker image from Docker Hub as your build environment.image: microsoft/dotnet-framework-build:4.7.1
pipelines:  default:    - step:        script: # Modify the comma`nds below to build your repository.          - export PROJECT_NAME=Mule.Net.Extension/Mule.Net.Extension.sln          - msbuild $PROJECT_NAME

However when i run the pipeline i get the below error -

rpc error: code = Unknown desc = no matching manifest for unknown in the manifest list entries

Thanks to show any docker image that will allow pipeline for .NET