r - twitteR ROAuth handshake error: not generating the PIN option -

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this question answers questions related twitter roauth problems:

twitter, roauth , windows: register ok, certificate verify failed

twitter , roauth both worked in pc before. code chunk not generating pin option anymore. pops out following: 

twitcred$handshake(cainfo="cacert.pem") error: unauthorized

previously twitcred$handshake(cainfo="cacert.pem") directs to:

to enable connection, please direct web browser to:  https://api.twitter.com/oauth/authorize?oauth_token=sevxcpch9rio5ppri8u8____ when complete, record pin given

i tried code in spark rstudio server. code works (generating option enter pin, not generated in pc). code is:

require(twitter) require(roauth)  requesturl <- "https://api.twitter.com/oauth/request_token" accessurl <- "https://api.twitter.com/oauth/access_token" authurl <- "https://api.twitter.com/oauth/authorize" consumerkey <- "______________" consumersecret <- "___________________"   twitcred <- oauthfactory$new(consumerkey=consumerkey, consumersecret=consumersecret, requesturl=requesturl, accessurl=accessurl, authurl=authurl)   setwd("/home/__") download.file(url="http://curl.haxx.se/ca/cacert.pem", destfile="cacert.pem") twitcred$handshake(cainfo="cacert.pem")   enable connection, please direct web browser to:    https://api.twitter.com/oauth/authorize?oauth_token=sevxcpch9rio5ppri8u8____   when complete, record pin given

any appreciated. 

twitcred$handshake(cainfo = system.file("curlssl", "cacert.pem", package = "rcurl"))

this worked me.


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