adding binding case

Author: Matias Quaranta

articles/cosmos-db/troubleshoot-changefeed-functions.md

@@ -84,6 +84,12 @@ Additionally, the scenario can be validated, if you know how many Azure Function
 
 One easy way to workaround this situation, is to apply a `LeaseCollectionPrefix/leaseCollectionPrefix` to your Function with a new/different value or, alternatively, test with a new leases container.
 
+### Binding can only be done with IReadOnlyList<Document> or JArray
+
+This error happens if your Azure Functions project (or any referenced project) contains a manual Nuget reference to the Azure Cosmos DB SDK with a different version that the one provided by the [Azure Functions Cosmos DB Extension](./troubleshoot-changefeed-functions.md#dependencies).
+
+To workaround this situation, remove the manual Nuget reference that was added and let the Azure Cosmos DB SDK reference resolve through the Azure Functions Cosmos DB Extension package.
+
 ## Next steps
 
 * [Enable monitoring for your Azure Functions](../azure-functions/functions-monitoring.md)