Angular Data GridAG Grid Angular Error #202

Full Error Text

Full error message cannot be shown because there are missing parameters in the URL. Please follow the full link from the developer tool logs.
`getSelectedNodes` and `getSelectedRows` functions cannot be used with `groupSelectsChildren` and the server-side row model. Use `api.getServerSideSelectionState()` instead.
To show this error text in the dev console, import the ValidationModule.

The following documentation pages should provide additional context / guidance on how to resolve this error.