Azure DevOps CICD 构建管道因错误而失败：未找到指定的命令或文件

Question

I have a CICD build pipeline in Azure Devops for building a .NET Core AWS API Gateway Serverless application. The Pipeline is using hosted Windows 2019. The step that fails is:

steps:
- task: AmazonWebServices.aws-vsts-tools.LambdaNETCoreDeploy.LambdaNETCoreDeploy@1
  displayName: 'Build solution and generate CloudFormation template. '
  inputs:
    awsCredentials: 'AWS - Development (Infrastructure)'
    regionName: 'ap-southeast-2'
    command: deployServerless
    packageOnly: true
    packageOutputFile: '$(Build.ArtifactStagingDirectory)\serverless-output.yaml'
    lambdaProjectPath: testapi/LCSApi.csproj
    s3Bucket: 'api-dev-xxxxxxxx-s3'
    s3Prefix: 'azure_devops_builds/lcs/'
    additionalArgs: '-template serverless.template '

All I get from the error is the following:

Beginning Serverless Deployment
Performing package-only build of serverless application, output template will be placed in D:\a\1\a\serverless-output.yaml
"C:\Program Files\dotnet\dotnet.exe" lambda package-ci -ot D:\a\1\a\serverless-output.yaml --region ap-southeast-2 --s3-bucket api-dev-xxxxxx-s3 --s3-prefix azure_devops_builds/lcs/ --disable-interactive true -template serverless.template
Could not execute because the specified command or file was not found.
Possible reasons for this include:
  * You misspelled a built-in dotnet command.
  * You intended to execute a .NET Core program, but dotnet-lambda does not exist.
  * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

##[error]Error: The process 'C:\Program Files\dotnet\dotnet.exe' failed with exit code 1
Finishing: Build solution and generate CloudFormation template.

However, if I re-run the pipeline straight after this failure, it works fine. Additionally, it does not always fail with this error. Around 70-80% of the time the pipeline works fine. What could this be and how can i address it?

Answer 1

Can you try adding this before your step:

powershell: |
   dotnet tool install --global Amazon.Lambda.Tools --version 3.1.1
   dotnet tool update -g Amazon.Lambda.Tools