[R-sig-Fedora] Cannot install knitr

[Paul Smith]

On Thu, Jun 29, 2017 at 3:15 PM, Tom Callaway <tcallawa at redhat.com> wrote:
>> Dear All,
>>
>> I am trying to install the package
>>
>> knitr
>>
>> but getting the following error:
>>
>> ----------------------
>> Error in dyn.load(file, DLLpath = DLLpath, ...) :
>>   unable to load shared object '/usr/lib64/R/library/stringi/libs/stringi.so':
>>   libicui18n.so.56: cannot open shared object file: No such file or directory
>> Error : unable to load R code in package ‘knitr’
>> ERROR: lazy loading failed for package ‘knitr’
>> * removing ‘/usr/lib64/R/library/knitr’
>> * restoring previous ‘/usr/lib64/R/library/knitr’
>> ----------------------
>>
>> I suppose that the problem is that knitr expects
>>
>> libicu-56
>>
>> installed, but it is
>>
>> libicu-57
>>
>> that is installed.
>
> Close, but this isn't knitr complaining.
> /usr/lib64/R/library/stringi/libs/stringi.so comes from the "stringi"
> CRAN module:
>
> https://cran.r-project.org/package=stringi
>
> You might have installed that from source, before updating libicu? You
> might not have done this manually, it could have been pulled in as a
> dependency of something else. "stringi" does not come with the core R
> software, so it wasn't built wrong for Fedora/EPEL. :)
>
> To reinstall it, just invoke (again):
>
> install.packages("stringi")
>
> That should succeed, and then the "stringi" shared object should be able
> to load.

Thanks, Tom. That did the trick!

Paul