8 – {"message": "The parameter u0022node has not been converted for the path u0022 / node / {node} (name of the route: u0022rest.entity.node. GET u0022) "}

GET: http://example.com/node?_format=json

On RestUI and JSONAPI

Using Post when I implements the GET query, I get the error above

{"message": "The parameter  u0022node has not been converted to the path  u0022  / node  / {node}  (name of the route:  u0022rest.entity.node.GET  u0022) "}

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I have enabled Content & Content Type Resource and the settings are as shown in the screen capture above.