How to resolve No available node types can fulfill resource

my ray version is 1.10.0
when I use ray cluster?
I got info on screen: (scheduler +51s) Error: No available node types can fulfill resource request {‘GPU’: 2.0, ‘CPU’: 2.0}. Add suitable node types to this cluster to resolve this issue.
(scheduler +51s) Error: No available node types can fulfill resource request {‘CPU’: 1.0, ‘custom_parallelism’: 1.0}. Add suitable node types to this cluster to resolve this issue.
(scheduler +1m26s) Error: No available node types can fulfill resource request {‘CPU’: 2.0, ‘GPU’: 2.0}. Add suitable node types to this cluster to resolve this issue.
(scheduler +1m26s) Error: No available node types can fulfill resource request {‘custom_parallelism’: 1.0, ‘CPU’: 1.0}. Add suitable node types to this cluster to resolve this issue.

and then i go to dash board: work could not stop, error message is :

Error: Traceback (most recent call last): File “/data/python36/lib/python3.6/site-packages/ray/dashboard/utils.py”, line 130, in _handler_route return await handler(bind_info.instance, req) File “/data/python36/lib/python3.6/site-packages/ray/dashboard/modules/node/node_head.py”, line 218, in get_errors ip = req.query[“ip”] KeyError: ‘ip’