ValueError: Unknown fields ['image'] - dask

Question

I am trying to deploy Dask Gateway integrated with JupyterHub which is the reason I decided to give DaskHub Chart a try.
After following the instructions on https://docs.dask.org/en/latest/setup/kubernetes-helm.html#helm-install-dask-for-mulitple-users. The JH is working fine but When I try to create a new Dask cluster via the UI or through:
[from dask_gateway import GatewayCluster
cluster = GatewayCluster()][2]
I get this error:
ValueError Traceback (most recent call last)
<ipython-input-3-36809e239298> in <module>
1 from dask_gateway import GatewayCluster
----> 2 cluster = GatewayCluster()
3
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in __init__(self, address, proxy_address, public_address, auth, cluster_options, shutdown_on_close, asynchronous, loop, **kwargs)
816 shutdown_on_close=shutdown_on_close,
817 asynchronous=asynchronous,
--> 818 loop=loop,
819 )
820
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in _init_internal(self, address, proxy_address, public_address, auth, cluster_options, cluster_kwargs, shutdown_on_close, asynchronous, loop, name)
912 self.status = "starting"
913 if not self.asynchronous:
--> 914 self.gateway.sync(self._start_internal)
915
916 #property
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in sync(self, func, *args, **kwargs)
337 )
338 try:
--> 339 return future.result()
340 except BaseException:
341 future.cancel()
/srv/conda/envs/notebook/lib/python3.7/concurrent/futures/_base.py in result(self, timeout)
433 raise CancelledError()
434 elif self._state == FINISHED:
--> 435 return self.__get_result()
436 else:
437 raise TimeoutError()
/srv/conda/envs/notebook/lib/python3.7/concurrent/futures/_base.py in __get_result(self)
382 def __get_result(self):
383 if self._exception:
--> 384 raise self._exception
385 else:
386 return self._result
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in _start_internal(self)
926 self._start_task = asyncio.ensure_future(self._start_async())
927 try:
--> 928 await self._start_task
929 except BaseException:
930 # On exception, cleanup
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in _start_async(self)
940 self.status = "starting"
941 self.name = await self.gateway._submit(
--> 942 cluster_options=self._cluster_options, **self._cluster_kwargs
943 )
944 # Connect to cluster
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in _submit(self, cluster_options, **kwargs)
529 options = self._config_cluster_options()
530 options.update(kwargs)
--> 531 resp = await self._request("POST", url, json={"cluster_options": options})
532 data = await resp.json()
533 return data["name"]
/srv/conda/envs/notebook/lib/python3.7/site-packages/dask_gateway/client.py in _request(self, method, url, json)
407
408 if resp.status in {404, 422}:
--> 409 raise ValueError(msg)
410 elif resp.status == 409:
411 raise GatewayClusterError(msg)
ValueError: Unknown fields ['image']
Any help will be greatly appreciated.