twitter - "error setting certificate" issue in R -

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i can't figure out how fix error keep getting in r:

error setting certificate verify locations:\n cafile: \n capath: none\n error in twinterfaceobj$doapicall(cmd, params, "get", ...) : error: error setting certificate verify locations: cafile: capath: none

i'm trying use twitter package gather tweets below function. working fine yesterday, can't find way fix certificate issue.

tweetframe <- function(searchterm, maxtweets)   {   twtlist<-searchtwitter(searchterm,n=maxtweets)   #twtlist involved in “variable” scoping exists within function     # searchterm needs string use "#hashtag"    twttempframe<- do.call("rbind", lapply(twtlist,as.data.frame))   # as.data.frame() coerces each list element row   # lapply() applies of elements in twtlist   # rbind() takes rows , puts them   # do.call() gives rbind() rows individual elements    return(twttempframe[order(as.integer(twttempframe$created)), ])  }

i don't know package. maybe http://curl.haxx.se/docs/sslcerts.html can you. solved certificate problem had r package.


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