Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Issue when using latest Microsoft.NET.Sdk.Functions (1.0.19)

See original GitHub issue

Description

Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator is a new package referenced by Microsoft.NET.Sdk.Functions and looks like it is responsible for generating an extensions.json file needed by the runtime.

When restoring packages with the latest paket and azure functions build, there are warnings MSB4011 at build time. When the build finishes the extensions.json generated is in the wrong location and empty.

Looking in the props/target files you do see a reference to both.

Full warning MSB4011 text:

C:\Users\JonathanOhlrich\.nuget\packages\microsoft.net.sdk.functions\1.0.19\build\netstandard1.0\Microsoft.NET.Sdk.Functions.props(38,3): warning MSB4011: "C:\Users\JonathanOhlrich\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.0\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.props" cannot be imported again. It was already imported at "C:\dev\authorization-service\src\Functions\obj\Functions.fsproj.nuget.g.props (17,5)". This is most likely a build authoring error. This subsequent import will be ignored. [C:\dev\authorization-service\src\Functions\Functions.fsproj]
C:\Users\JonathanOhlrich\.nuget\packages\microsoft.net.sdk.functions\1.0.19\build\netstandard1.0\Microsoft.NET.Sdk.Functions.targets(45,3): warning MSB4011: "C:\Users\JonathanOhlrich\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.0\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.targets" cannot be imported again. It was already imported at "C:\dev\authorization-service\src\Functions\obj\Functions.fsproj.nuget.g.targets (9,5)". This is most likely a build authoring error. This subsequent import will be ignored. [C:\dev\authorization-service\src\Functions\Functions.fsproj]

Repro steps

Paket version 5.176.9

Reference Microsoft.NET.Sdk.Functions 1.0.19 and then build

Expected behavior

Since Microsoft.NET.Sdk.Functions references Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator I suppose only Microsoft.NET.Sdk.Functions’s props/targets should be used? I’m not positive how exactly both are being referenced

Actual behavior

Both exist causing warnings and incorrect behavior

Known workarounds

If you restore and manually remove the Imports lines referencing the Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator’s target and props in the obj folder, then build --no-restore will succeed without warning and generate the extensions.json in the function app’s bin folder

I tried to explicitly exclude the targets via Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator import_targets: false at both the paket.reference and paket.dependencies, but it would still appear.

Issue Analytics

State:
Created 5 years ago
Comments:32 (25 by maintainers)

Top GitHub Comments

1reaction

ravicinicommented, Jan 29, 2019

I analyzed the diagnostics log output and there are some differences which seems relevant to my bug.

Order of msbuild task execution:

Nuget version: _GenerateFunctionsPostBuild -> _GenerateFunctionsExtensionsMetadataPostBuild
Paket version: _GenerateFunctionsExtensionsMetadataPostBuild -> _GenerateFunctionsPostBuild

Paths used in _GenerateFunctionsExtensionsMetadataPostBuild task:

Paket version:

1>Target "_GenerateFunctionsExtensionsMetadataPostBuild" in file "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.targets":
1>  Using "GenerateFunctionsExtensionsMetadata" task from assembly "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\..\tools\net46\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.dll".
1>  Task "GenerateFunctionsExtensionsMetadata"
1>    Task Parameter:SourcePath=C:\workspace\Paket.Functions\Paket.Functions\bin\Debug\netcoreapp2.2\
1>    Task Parameter:OutputPath=C:\workspace\Paket.Functions\Paket.Functions\bin\Debug\netcoreapp2.2\
1>  Done executing task "GenerateFunctionsExtensionsMetadata".
1>  Task "Move" skipped, due to false condition; ($(_IsFunctionsSdkBuild) == 'true' AND Exists('$(TargetDir)extensions.json')) was evaluated as ( == 'true' AND Exists('C:\workspace\Paket.Functions\Paket.Functions\bin\Debug\netcoreapp2.2\extensions.json')).
1>Done building target "_GenerateFunctionsExtensionsMetadataPostBuild" in project "Paket.Functions.csproj".

Nuget version:

1>Target "_GenerateFunctionsExtensionsMetadataPostBuild" in file "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.targets":
1>  Using "GenerateFunctionsExtensionsMetadata" task from assembly "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\..\tools\net46\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.dll".
1>  Task "GenerateFunctionsExtensionsMetadata"
1>    Task Parameter:SourcePath=C:\workspace\Nuget.Functions\Nuget.Functions\bin\Debug\netcoreapp2.2\bin
1>    Task Parameter:OutputPath=C:\workspace\Nuget.Functions\Nuget.Functions\bin\Debug\netcoreapp2.2\bin
1>  Done executing task "GenerateFunctionsExtensionsMetadata".
1>  Task "Move" skipped, due to false condition; ($(_IsFunctionsSdkBuild) == 'true' AND Exists('$(TargetDir)extensions.json')) was evaluated as (true == 'true' AND Exists('C:\workspace\Nuget.Functions\Nuget.Functions\bin\Debug\netcoreapp2.2\extensions.json')).
1>Done building target "_GenerateFunctionsExtensionsMetadataPostBuild" in project "Nuget.Functions.csproj".

2 Warnings in Paket version:

1>C:\Users\marco.ravicini\.nuget\packages\microsoft.net.sdk.functions\1.0.24\build\netstandard1.0\Microsoft.NET.Sdk.Functions.props(38,3): warning MSB4011: "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.props" cannot be imported again. It was already imported at "C:\workspace\Paket.Functions\Paket.Functions\obj\Paket.Functions.csproj.nuget.g.props (17,5)". This is most likely a build authoring error. This subsequent import will be ignored. [C:\workspace\Paket.Functions\Paket.Functions\Paket.Functions.csproj]
1>C:\Users\marco.ravicini\.nuget\packages\microsoft.net.sdk.functions\1.0.24\build\netstandard1.0\Microsoft.NET.Sdk.Functions.targets(45,3): warning MSB4011: "C:\Users\marco.ravicini\.nuget\packages\microsoft.azure.webjobs.script.extensionsmetadatagenerator\1.0.1\build\Microsoft.Azure.WebJobs.Script.ExtensionsMetadataGenerator.targets" cannot be imported again. It was already imported at "C:\workspace\Paket.Functions\Paket.Functions\obj\Paket.Functions.csproj.nuget.g.targets (9,5)". This is most likely a build authoring error. This subsequent import will be ignored. [C:\workspace\Paket.Functions\Paket.Functions\Paket.Functions.csproj]