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Error retrieving bars

Posted By mbessler 7 Years Ago
Posted Tuesday July 24 2012
I get the following error when trying to update historical data:

Error retrieving bars:IB error/warning! id=0 200:No security definition has been found for the request

TWS is up and running. I also downloaded the API (
In the TWS options (Configure->API) the following is checked "Enable ActiveX and Socket Clients".
Posted Tuesday September 04 2012
Any Ideas? I have no Solution yet.
Posted Tuesday September 04 2012
Check that you are subscribed for the relevant market data
Check that you defined the symbol correctly based on -

if future or option, then expiration should be defined as well.
Posted Monday February 20 2017
Hey did you ever get this to work I have a similar issue

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