We are currently on v 1.11 and planning to upgrade to 2.2.3. As we have lot of custom code written in our application, we wanted to stick with legacy c# driver. We are noticing the following error with update or remove calls.

Any help or direction in regards to this issue is greatly appreciated.

{ "$err" : "Unable to execute query: error processing query: ns=test-ads-fast.field limit=0 skip=0\nTree: orgId == 2000\nSort: {}\nProj: {}\n No query solutions", "code" : 17007 }).