In R, When I was applying a function getSymbols() and I was running the code
getSymbols(tick, from = from_date, to = to_date, warnings = FALSE, auto.assign = TRUE, src="yahoo")got error “Error in new.session() : Could not establish session after 5 attempts” and didn’t get a result.
As getSymbols() is the function of Quantmod package. Quantmod is an R package that provides a framework for quantitative financial modeling and trading. It provides a rapid prototyping environment that makes modeling easier by removing the repetitive workflow issues surrounding data management and visualization.
Why “Error in new.session() : Could not establish session after 5 attempts” Error Occurred?
When getSymbols() run, Inside getSymbols() , .getHandle will called ans our source is “yahoo” src=”yahoo”. When it goes to yahoo, All the 5 calls to the yahoo website return with no cookies, hence the function fails.
How to Fix “Why “Error in new.session() : Could not establish session after 5 attempts” Error Occurred?”
When this error comes, Joshua Ulrich quickly published the fix. That time you can install the patched version and that error will be gone
Quick Fix Patched Version:
remotes::install_github("joshuaulrich/quantmod@358-getsymbols-new.session")
But Now all the changes are pushed into CRAN. So
To Fix “Error in new.session() : Could not establish session after 5 attempts” error, just update the QuantMod package and your error will be gone.
install.packages('quantmod')
We hope by running the above code or updating the QuantMod package your error gone.