Can anyone help regarding why this isn't working and im getting the following error

Error (Bad response statusCode [422]. Status [422 Unprocessable Entity]. Body: [code=InvalidOption, baseType=error, fieldName=Image is required when selectorContainer is not passed in] from [<http://localhost:8080/v2-beta/projects/1a7/services>])

I followed the following guide

<https://medium.com/quick-mobile/using-swarm-as-rancher-orchestrator-533042bb9670>

And im running Rancher 2.0