RPC calling in development mode?

Hi,

I am not sure if it is problem in the GWT or in the SmartGwt.
I use RPC calling and when I run development mode, application is loaded, but I do not see any data in components… In normal mode is all ok.

So, when I want try application, I must compile GWT code… and that is not very fast for testing.

My versions:
SmartGWT 2.2
GWT 2.1

I got this error:

00:00:47,700 [ERROR] 12:58:37.545:XRP5:WARN:RPCManager:Error performing rpcRequest: error: TRANSPORT_ERROR, response: {status: -90, data: Obj, httpResponseCode: 500, transactionNum: 1, clientContext: Obj, context: Obj, __gwt_ObjectId: 351, startRow: 0, endRow: 0, totalRows: 0}

Any idea, please?

Thanks