Couldn't connect to TWS

[Wei Jingjue]

Hi!
When i tried ibtest.py and my input was(nothing changed )

--data0 EUR.USD-CASH-IDEALPRO  --timeframe Seconds --compression 1

and i got

\ibtest>python ibtest.py --data0 EUR.USD-CASH-IDEALPRO --resample --timeframe Seconds --compression 1
--------------------------------------------------
Strategy Created
--------------------------------------------------
Datetime, Open, High, Low, Close, Volume, OpenInterest, SMA
***** STORE NOTIF: <error id=-1, errorCode=502, errorMsg=Couldn't connect to TWS.  Confirm that "Enable ActiveX and Socket Clients" is enabled on the TWS "Configure->API" menu.>
***** STORE NOTIF: <error id=-1, errorCode=502, errorMsg=Couldn't connect to TWS.  Confirm that "Enable ActiveX and Socket Clients" is enabled on the TWS "Configure->API" menu.>
***** STORE NOTIF: <error id=-1, errorCode=502, errorMsg=Couldn't connect to TWS.  Confirm that "Enable ActiveX and Socket Clients" is enabled on the TWS "Configure->API" menu.>
***** STORE NOTIF: <error id=-1, errorCode=502, errorMsg=Couldn't connect to TWS.  Confirm that "Enable ActiveX and Socket Clients" is enabled on the TWS "Configure->API" menu.>

Do you meet the same problem ? how to fix it ?
Thanks in advance

[backtrader]

Sorry, but the information is not enough.

• Is TWS running?
• If yes on which port?
• Have you specified the same port for the sample?
• Have you (as pointed out in the error message) checked the error message?

  Confirm that "Enable ActiveX and Socket Clients" is enabled on the TWS "Configure->API" menu