You provided very little context, but the word "Sending" in the error message jumped at me. Just guessing but could it be that your request fails in the Julia API implementation before it is even sent to TWS? That would explain why you get no data.
You could check TWS API log to verify whether the request makes it to TWS and whether market data is sent back to you. You might want to reach out to the creators of the Julia API if TWS never sees the request.
闯ü谤驳别苍
On Thu, Mar 10, 2022 at 06:01 PM, comicpilsen wrote:
Hi all is there ANY reason that calling reqMktdata using "SPX" , "CBOE","USD" as parameters would cause
sending | ┌ Error: exception thrown
│ e = TypeError: in typeassert, expected Float64, got a value of type Nothing
and no data?
I can send the same reqMktdata for any symbol and it works perfectly.
