Error in New.Session():Could Not Establish Session After 5 Attempts

Error in new.session() : Could not establish session after 5 attempts

Update QuantMod and try again:

install.packages('quantmod')

This was a bug that was fixed very swiftly. Thank you Joshua Ulrich!

History (2022-04-29):

This was an issue on 2022-04-29 that Joshua Ulrich promptly published a fix for. You could install the patched version with:

remotes::install_github("joshuaulrich/quantmod@358-getsymbols-new.session")

But the changes are now into CRAN, so you should just be able to update QuantMod and continue with your day.

Link to fix: GitHub: joshuaulrich/quantmod@358-getsymbols-new.session

GitHub issue here.

Problems with getSymbols.yahoo

Yahoo finance doesn't recognize USDT as a valid ticker. If you want to download this data you need to use "USDT-USD".

USDT <- getSymbols("USDT-USD",start = "2018-01-01",end = "2021-12-31", auto.assign = F)

head(USDT)
           USDT-USD.Open USDT-USD.High USDT-USD.Low USDT-USD.Close USDT-USD.Volume USDT-USD.Adjusted
2017-11-09       1.01087       1.01327     0.996515        1.00818       358188000           1.00818
2017-11-10       1.00650       1.02423     0.995486        1.00601       756446016           1.00601
2017-11-11       1.00598       1.02621     0.995799        1.00899       746227968           1.00899
2017-11-12       1.00602       1.10591     0.967601        1.01247      1466060032           1.01247
2017-11-13       1.00448       1.02929     0.975103        1.00935       767884032           1.00935
2017-11-14       1.00524       1.01343     0.996898        1.00683       429857984           1.00683

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