Error: spawn C:\hostedtoolcache\windows\terraform\1.5.5\x64\terraform.exe ENOENT

Take this:

1. Terraform Not Installed or Not Found

Even if the path seems valid, the agent might not have Terraform installed at that location. If you're using a Microsoft-hosted agent, you need to explicitly install Terraform in your pipeline.

Add a TerraformInstaller task before using Terraform:

- task: TerraformInstaller@0
  inputs:
    terraformVersion: '1.5.5'

2. Incorrect Working Directory

If your pipeline references a working directory that doesn’t match the location of your Terraform files or artifacts, Terraform won’t find main.tf, and the error might misleadingly point to the executable.

Double-check the workingDirectory in your Terraform task. It should match the path where your .tf files are located:

workingDirectory: '$(System.DefaultWorkingDirectory)/_YourArtifactName/drop'

3. Artifact Source Alias Mismatch

If you renamed your artifact, make sure the pipeline references the correct alias. A mismatch here can cause the pipeline to look in the wrong place.

Update the workingDirectory to reflect the new artifact name:

workingDirectory: '$(System.DefaultWorkingDirectory)/_RenamedArtifact/drop'