Cannot build Xamarin iOS on Microsoft Azure Hosted Agent with GRPC Core ( MTOUCH : error MT0009: Error while loading assemblies: .../grpc_csharp_ext.x64.dll)

delaCruz 1 Reputation point
2021-01-18T07:46:29.49+00:00

We want to build our Xamarin iOS using Microsoft Azure Hosted agent with MacOS VM but we are having an error when it tries to "CompileToNative"

MTOUCH : error MT0009: Error while loading assemblies: /Users/runner/.nuget/packages/grpc.core/2.31.0/runtimes/win/native/grpc_csharp_ext.x64.dll [/Users/runner/work/1/s/ProjectName/ProjectName.iOS/ProjectName.iOS.csproj]

Our yaml file.

pool:
vmImage: 'macOS-latest'

steps:
 # To manually select a Xamarin SDK version on the Hosted macOS agent, enable this script with the 
SDK version you want to target
# https://go.microsoft.com/fwlink/?linkid=871629
- script: sudo $AGENT_HOMEDIRECTORY/scripts/select-xamarin-sdk.sh 6_6_0 
 displayName: 'Select Xamarin SDK version'
 enabled: true

- task: NuGetCommand@2
  inputs:
    restoreSolution: '**/*.sln'


- task: XamariniOS@2
  inputs:
    solutionFile: '**/*.sln'
    configuration: 'Release'
    buildForSimulator: true
    packageApp: false

There is similar error similar to this https://forums.xamarin.com/discussion/32126/error-while-loading-assembles-mt0009-mtouchtask Bu the accepted does not help us because it is running on Microsoft hosted agent environment.

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  1. Leon Lu (Shanghai Wicresoft Co,.Ltd.) 69,386 Reputation points Microsoft Vendor
    2021-01-20T07:19:34.907+00:00

    If you can build it normally withoutthe grpc package, your issue is related to the Azure DevOps, Azure DevOps is currently not supported in the Q&A forums, the supported products are listed over here: https://learn.microsoft.com/en-us/answers/products (more to be added later on). For the related questions about Azure DevOps you can ask in here
    https://developercommunity2.visualstudio.com/report?space=21&entry=problem

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