Trading toolbox getdata error

i got the below error when trying to retrieve realtime data, and not getting the bid_price and X_price

windows 10 64bit

matlab: R2020A

TWS and API latest

ERROR

Error using comeventcallback (line 24)

Error firing event 'tickPrice' to '@(varargin)ibBuiltInGetDataEventHandler(varargin{:},c)'.

Warning: Error occurred while evaluating listener callback.

> In ibtws/getdata (line 62)

Error using comeventcallback (line 24)

Error firing event 'tickPrice' to '@(varargin)ibBuiltInGetDataEventHandler(varargin{:},c)'.

Warning: Error occurred while evaluating listener callback.

> In ibtws/getdata (line 62)

Error using comeventcallback (line 24)

Error firing event 'tickPrice' to '@(varargin)ibBuiltInGetDataEventHandler(varargin{:},c)'.

Warning: Error occurred while evaluating listener callback.

> In ibtws/getdata (line 62)

d =

struct with fields:

BID_SIZE: 18.00

ASK_SIZE: 41.00

LAST_SIZE: 2.00

VOLUME: 78596.00

Code

clear all;

ib = ibtws('127.0.0.1', 7497,1)

ibContract = ib.Handle.createContract;

ibContract.symbol = 'INTC';

ibContract.secType = 'STK';

ibContract.exchange = 'SMART';

ibContract.primaryExchange = 'NASDAQ';

ibContract.currency = 'USD';

format bank

d = getdata(ib,ibContract) % Return market data

close(ib)

Answer 1

[Vashist Hegde]

To debug, put a break point at line 103 of ibtws/getdata, which can be found by using "edit". The particular line is as follows:

switch varargin{9}.tickType

Get the output of "varargin{9}".

The field in "varargin{9}" is named "Price" (capital P) while the cases in "getdata" use "price" (lowercase p). This is the cause of the error.

As a workaround, copy the "getdata" file and change the field name to match the returned structure., then use the modified version instead of the normal "getdata".

[Gabriel Hara]

Vashist thanks a lot for your fast response. i checked your proposal and now it is working. thanks a lot!