Wayne, that one is unrelated, but interesting - you can fix it with
sudo install_name_tool -change \ /usr/local/lib:/opt/X11/lib/libtk8.6.dylib \ /usr/local/lib/libtk8.6.dylib \ /usr/local/bin/wish8.6 There is a bug in tcltk with IDs on the libraries which I have worked-around for R, but not for wish. Back to the original question - do you have any example of a file that doesn't work so I could test? Exif chunks are fairly rare in PNG and are a more late extension so I couldn't find any examples. Thanks, Simon > On 12/06/2020, at 12:24 PM, Wayne Oldford <rwoldf...@uwaterloo.ca> wrote: > > I don't know what has changed with Catalina > > But I just tried my tk console from the shell command tkcon > And got the following error. > Here is my shell: > > $ tkcon > > dyld: Library not loaded: /usr/local/lib:/opt/X11/lib/libtk8.6.dylib > Referenced from: /usr/local/bin/wish > Reason: image not found > Abort trap: 6 > > > I don't know whether this is a red herring or not, but the > Console fails to boot. > > John does it work for you? > > Not sure whether Python has the same trouble. Kind of old info at > https://www.python.org/download/mac/tcltk/ > > > > > -----Original Message----- > From: "Fox, John" <j...@mcmaster.ca> > Date: Thursday, June 11, 2020 at 7:54 PM > To: Wayne Oldford <rwoldf...@uwaterloo.ca> > Cc: Peter Dalgaard <pda...@gmail.com>, "r-devel@r-project.org" > <r-devel@r-project.org> > Subject: Re: [Rd] tcltk image reading problem (on a mac?): [tcl] encountered > an unsupported criticial chunk type "eXIf" > > Dear Wayne and Peter, > > FWIW, I observe exactly the same problem in Catalina. The error and my > session info: > > -------- snip -------- > >> tkimage.create("photo", file = fname) > Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") : > [tcl] encountered an unsupported criticial chunk type "eXIf". > >> sessionInfo() > R version 4.0.0 (2020-04-24) > Platform: x86_64-apple-darwin17.0 (64-bit) > Running under: macOS Catalina 10.15.5 > > Matrix products: default > BLAS: > /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib > LAPACK: > /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib > > locale: > [1] en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8 > > attached base packages: > [1] tcltk stats graphics grDevices utils datasets methods > base > > loaded via a namespace (and not attached): > [1] compiler_4.0.0 tools_4.0.0 > > -------- snip -------- > > This is from RStudio but I see the same thing in the R.app. > > I hope this is of some help, > John > > ----------------------------- > John Fox, Professor Emeritus > McMaster University > Hamilton, Ontario, Canada > Web: http::/socserv.mcmaster.ca/jfox > >> On Jun 11, 2020, at 6:43 PM, Wayne Oldford <rwoldf...@uwaterloo.ca> wrote: >> >> Yes. >> I seem to be picking up >> <Tcl> 8.6 >> I should have noted that. >> >> Use to work for me too in Mojave. >> I have the sneaky feeling that Catalina is the problem. >> >> R. W. Oldford >> >> https://math.uwaterloo.ca/~rwoldfor >> >> ________________________________ >> From: Peter Dalgaard <pda...@gmail.com> >> Sent: Thursday, June 11, 2020 5:56:15 PM >> To: Wayne Oldford <rwoldf...@uwaterloo.ca> >> Cc: r-devel@r-project.org <r-devel@r-project.org> >> Subject: Re: [Rd] tcltk image reading problem (on a mac?): [tcl] encountered >> an unsupported criticial chunk type "eXIf" >> >> Happy enough for me on Mojave. >> >> On the off chance that you are picking up an old Tcl, do you see this? >> >>> tcl("info","tclversion") >> <Tcl> 8.6 >> >> >> -pd >> >>> On 11 Jun 2020, at 23:04 , Wayne Oldford <rwoldf...@uwaterloo.ca> wrote: >>> >>> Hello everyone >>> >>> I am not sure when this appeared >>> (sometime post R 3.5.0 and after I switched to Mac OS Catalina). >>> >>> I do not think it happens on all platforms (e.g. seems to work on windows). >>> >>> But it seems that >>> >>> tkimage.create() >>> >>> no longer works on a Mac for all png files. >>> >>> >>> (It does work for *some* old png files I have on disk but I have not been >>> able to determine what is different about the ones that work) >>> >>> Any help would be appreciated. >>> >>> - Wayne >>> >>> >>> R.W. Oldford >>> math.uwaterloo.ca/~rwoldfor >>> >>> >>> >>> >>>> library(tcltk) >>> >>>> fname <- "Rplot.png" >>>> png(filename = fname, width = 500, height = 500) >>>> hist(rnorm(20)) >>>> dev.off() >>> >>>> tkimage.create("photo", file = fname) >>> >>> Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") : >>> [tcl] encountered an unsupported criticial chunk type "eXIf". >>> >>> >>> ______________________________ >>> >>>> R.version >>> _ >>> platform x86_64-apple-darwin17.0 >>> arch x86_64 >>> os darwin17.0 >>> system x86_64, darwin17.0 >>> status >>> major 4 >>> minor 0.0 >>> year 2020 >>> month 04 >>> day 24 >>> svn rev 78286 >>> language R >>> version.string R version 4.0.0 (2020-04-24) >>> nickname Arbor Day >>> >>> ___________________________ >>> >>> macOS Catalina V 10.15.5 >>> >>> ___________________________________________________ >>> >>> >>> [[alternative HTML version deleted]] >>> >>> ______________________________________________ >>> R-devel@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-devel >> >> -- >> Peter Dalgaard, Professor, >> Center for Statistics, Copenhagen Business School >> Solbjerg Plads 3, 2000 Frederiksberg, Denmark >> Phone: (+45)38153501 >> Office: A 4.23 >> Email: pd....@cbs.dk Priv: pda...@gmail.com >> >> >> >> >> >> >> >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel > > > > > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
