That worked for me. I deleted two plugins from the global /Library/Internet\ Plug-Ins folder named

 AdobePDFViewer.plugin
 AdobePDFViewerNPAPI.plugin

and dated from 2020.  Now things are fine.

Duncan Murdoch

On 06/02/2023 7:36 p.m., Simon Urbanek wrote:
Kevin,

oh, that's something entirely different - what I was talking about was if you 
use
vignette("survival")
in R it opens a Preview with the vignette.

What you describe seems like a browser plugin issue, because the help system is 
just an html page (assuming you are talking about the html help system). So it 
seems that you may have installed some Adobe browser plugin that doesn't work 
anymore. The plugins live in ~/Library/Internet\ Plug-Ins/ (user) and 
/Library/Internet\ Plug-Ins/ (global), so you should remove it from there.

Cheers,
Simon


On 7/02/2023, at 12:01 PM, Kevin Thorpe <kevin.tho...@utoronto.ca> wrote:

When I try to open a PDF vignette (say a vignette from the survival 
package)from the help system in R it does not open Preview. I cannot actually 
open any PDF vignettes. All I get is a finder window with the error I 
previously described. It asks me to select an appropriate viewer. Selecting 
Preview opens nothing and more errors are thrown to the Console. I could send 
you and Duncan screenshots off-list, since I know that theses lists are picky 
about attachments.

The steps I take are:

1. Open the R app.
2. Start the Help system.
3. Navigate to the survival package vignettes.
4. Click the PDF link for the The survival package

Then the errors happen.

I will send a screenshot of the result off list.

Kevin

--
Kevin E. Thorpe
Head of Biostatistics,  Applied Health Research Centre (AHRC)
Li Ka Shing Knowledge Institute of St. Michael’s Hospital
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.tho...@utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016

On Feb 6, 2023, at 4:58 PM, Simon Urbanek <simon.urba...@r-project.org> wrote:

Kevin,

can you then describe in more detail what you are taking about? If you open a PDF 
vignette in R, it simply calls "open" so it will open in Preview (as that is 
your system viewer). And you have confirmed that it is what happens, so are you taking 
about something else? If so, please describe every step you make to reproduce whatever 
issue you are having.

Thanks,
Simon


On Feb 7, 2023, at 9:58 AM, Kevin Thorpe <kevin.tho...@utoronto.ca> wrote:

Yes, it does.

Kevin

--
Kevin E. Thorpe
Head of Biostatistics,  Applied Health Research Centre (AHRC)
Li Ka Shing Knowledge Institute of St. Michael’s Hospital
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.tho...@utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016

On Feb 6, 2023, at 3:56 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote:

On 06/02/2023 3:47 p.m., Kevin Thorpe wrote:
Simon,
Preview is my default viewer. In the finder window that came up I tried 
selecting Preview as the viewer to use and it still failed. The following 
errors went to the Console.
2023-02-06 15:43:55.448 R[62964:5174302] +[CATransaction synchronize] called 
within transaction
2023-02-06 15:43:55.568 R[62964:5174302] +[CATransaction synchronize] called 
within transaction
2023-02-06 15:44:03.253 R[62964:5174302] +[CATransaction synchronize] called 
within transaction
2023-02-06 15:44:16.012 R[62964:5174302] +[CATransaction synchronize] called 
within transaction
Kevin

Hi Kevin.

If you just run `open some.pdf` in a terminal, does it open properly in Preview?

Duncan Murdoch





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