You've got the right Michael Lawrence. I'm not getting that warning, so please send your sessionInfo() output. Also, I hope you don't mind that I've cc'd the Bioc list. Michael On Thu, Mar 27, 2014 at 8:07 PM, David Ghosh, PhD <dghosh@ifti.org> wrote: > > A specific example of the error: > > > tTrack<- import("testB3.bed") > > gr<-GenomicData(tTrack, genome="hg19", asRangedData=TRUE) > > sessionNew<-browserSession("UCSC") > Warning message: > In .local(.Object, ...) : NAs introduced by coercion > > track(sessionNew, "test track")<-gr > Error in UseMethod("xpathApply") : > no applicable method for 'xpathApply' applied to an object of class > "NULL" > > > > This is from an AWS EC2 instance in the us-east (Virginia) availability > zone. > > David Ghosh, PhD > President, Institute for Transcriptional Informatics > Woodland Hills, CA 91365 > Telephone: 412-682-0550 > Website: http://www.ifti.org/ > > -----Original Message----- > From: Michael Lawrence [mailto:lawrence.michael@gene.com] > Sent: March 27, 2014 12:23:AM > To: dghosh@ifti.org > Cc: Michael Lawrence > Subject: Re: rtracklayer connect problems > > Please send me the details of the connection issues. A lot of times, this > is > some sort of proxy getting in the way. > > Michael > > > > On Wed, Mar 26, 2014 at 7:59 PM, David Ghosh, PhD <dghosh@ifti.org> wrote: > > > > > Michael > > > > Is there anything that's changed on the server side at the UCSC > genome browser and how it might interact with Curl / rtracklayer? There's > a > new connection problem that I've run into recently. > > > > About the issue of connecting to specific UCSC sessions and the > problems with that, I'll send the details/ code in the very near future. > > > > David > > > > David Ghosh, PhD > > President/Owner > Institute for Transcriptional Informatics > Woodland Hills, CA 91365 > > Telephone: 412-682-0550 > > Website: http://www.ifti.org/ > > > > > > [[alternative HTML version deleted]]