It turned out that we were using the wrong node.js version (to old).
This yaml works:
- task: NodeTool@0
inputs:
versionSpec: '16.x'
displayName: 'Installing Node.js'
- script:
pip install --upgrade pip
pip install -r requirements.txt
displayName: 'Installing RF tool stack'
- script:
rfbrowser init
displayName: 'RF Browser init'
Thanks for your input!