libMagickCore-7.Q16HDRI.so.6 not found

[rdmorin]

I am encountering a fatal error when attempting to use the Magick R package installed through conda.

The relevant packages I have installed are:

r-magick 2.2 r36h0357c0b_0 conda-forge
imagemagick 7.0.9_2 pl526hccb53ba_0 conda-forge

The error message is:

Error: package or namespace load failed for ‘magick’ in dyn.load(file, DLLpath = DLLpath, ...): unable to load shared object ‘/projects/HTMCP_DLBCL/.snakemake/conda/a65d0466/lib/R/library/magick/libs/magick.so’:
libMagickCore-7.Q16HDRI.so.6: cannot open shared object file: No such file or directory
Execution halted

If I run ldd on the magick.so file included with the conda recipe, the libMagickCore-7.Q16HDRI.so.6 file is indeed not found or linked properly:

   linux-vdso.so.1 =>  (0x00007ffef534c000)
   libMagick++-7.Q16HDRI.so.4 => >/projects/HTMCP_DLBCL/.snakemake/conda/a65d0466/lib/R/library/magick/libs/../../../../libMagick++-7.Q16HDRI.so.4 (0x00007f70b55b9000)
   libMagickCore-7.Q16HDRI.so.6 => not found

I am wondering if this package is necessary still or is a remnant of an older recipe. In any case, is there a workaround for this?

[jeroen]

I think you have to report this in conda. It looks like they have upgraded imagemagick but need to recompile r-magick.

Btw we strongly recommend not using anaconda and instead download the official R for mac from CRAN: https://cran.r-project.org/bin/macosx/ . This version is guaranteed to always work.

[rdmorin]

Thanks for pointing this out. I cannot install the imagemagick package because I don't have admin on this system. I'll report the issue to the maintainers of the r-magick conda recipe. Hopefully they can recompile it.

[dmi3kno]

On Ubuntu I have seen similar error and then ldconfig helped.
https://stackoverflow.com/questions/50602024/error-while-loading-shared-libraries-libmagickcore-7-q16hdri-so-6

[HannoSpreeuw]

add some path from the output of
locate libMagickCore-7.Q16HDRI.so.6
to your LD_LIBRARY_PATH by setting
export LD_LIBRARY_PATH=/my/hidden/path/to/libMagickCore-7.Q16HDRI.so.6.