[ISSUE]: gittools/actions/gitversion/execute GitVersion output is not valid JSON output is undefined in Github Action after upgrade from v0 to v3

[heddal]

Prerequisites

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GitVersion package

GitHub Actions

What are you seeing?

We have updated the GitTools execute action from v0 to v3.1.11. In these major bumps, additionalArguments has been removed (#1203). Previously, we had the following in our workflow:

- name: Determine Version
   id: gitversion
   uses: gittools/actions/gitversion/execute@v0
   with:
      additionalArguments: /overrideconfig mode=Mainline

At first, we upgraded just the version number (above @v0 -> @v3.1.11) without removing the additionalArguments param. This works, the workflow still runs, but we understandably get this warning

Warning: Unexpected input(s) 'additionalArguments', valid inputs are ['targetPath', 'disableCache', 'disableNormalization', 'disableShallowCloneCheck', 'useConfigFile', 'configFilePath', 'overrideConfig', 'updateAssemblyInfo', 'updateAssemblyInfoFilename']

Therefore I tried updating the workflow job to the following:

- name: Determine Version
   id: gitversion
   uses: gittools/actions/gitversion/execute@v3.1.11
   with:
      useConfigFile: true

With a simple config file GitVersion.yml at root containing one line: mode: Mainline. Mysteriously, this results is the following error in our workflow:

Error: GitVersion output is not valid JSON
dotnet-gitversion Output:
undefined

I get the same error if I remove the parameters all together like this:

- name: Determine Version
   id: gitversion
   uses: gittools/actions/gitversion/execute@v3.1.11

The steps before this looks like this:

- name: Checkout
   uses: actions/checkout@v3
   with:
       fetch-depth: 0

- name: ⚙️ Set up dotnet
   uses: actions/setup-dotnet@v4
   with:
      global-json-file: ./global.json

- name: Install GitVersion
   uses: gittools/actions/gitversion/setup@v3.1.11
   with:
      versionSpec: '6.0.x'

- name: Determine Version
   id: gitversion
   uses: gittools/actions/gitversion/execute@v3.1.11

Can you help me to understand why this happens and what I can do to fix it?

What is expected?

I expect this workflow step to work as described in the documentation here.

- name: Determine Version
   id: gitversion
   uses: gittools/actions/gitversion/execute@v3.1.11
   with:
      useConfigFile: true

Steps to Reproduce

Reproducible steps given in the description above. We are running the workflow job on ubuntu-latest. The Github repository is private so I cannot share logs or code with you, unfortunately.

Output log or link to your CI build (if appropriate).

[heddal]

"Solved" this by changing the versionSpec from 6.0.x to 5.x, and only specify major version of execute from gittools/actions/gitversion/setup@v3 instead of gittools/actions/gitversion/setup@v3.1.11.