Hi Mario,

Thank you. Hope you are doing well.

Mario, I had missed pasting two lines from my source code. The two lines have been pasted above Sr. No. 9 in this post. The 'opt_strike' is defined there.

Thank you for pointing out. Please let me know if your error is gettign resolved after adding these two lines of code.

--

Founder: FinQuest Institute | Ekspert Consulting; www.finquestinstitute.com; www.ekspertconsulting.com

Love podcasts or audiobooks? Learn on the go with our new app.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store