[R-SIG-Mac] Problem loading a package libraries (Error in dyn.load) on mac environments

[Davor Cubranic]

Looks like you might not have the 64-bit version of the Rcpp dynamic library installed on the first machine. On the second, check if you have the 32-bit version of both XML and expat's dynamic libraries.

Davor


On 2012-12-03, at 8:34 AM, Frederic Fournier wrote:

> Hello everyone,
> 
> I'm working on a small R package for proteomics analysis, and I am facing perplexing problems related to the 'dyn.load' function when loading the package on mac environments.
> The package relies on two external libraries, expat and pthread, and on three cran packages: XML, Rcpp and data.table. I have no trouble building, checking or installing the package. But when I load the package on mac testing environments, I face various problems related to this error message: "Error in dyn.load(file, DLLpath=DLLpath, ...): ..."
> On one machine, the package loads without problem on i386 R, but fails to load on x64 R; on another machine, things are reversed and the package loads on x64, but fails to load on i386.
> 
> Here is the output from the machinge where the package loads on i386 but fails on x64 R:
> 
>> library(rTANDEM)
> Loading required package: XML
> Loading required package: Rcpp
> Loading required package: data.table
> data.table 1.8.6  For help type: help("data.table")
> Error in dyn.load(file, DLLpath = DLLpath, ...) :
>  unable to load shared object
> '/Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM/libs/
> x86_64/rTANDEM.so':
>  dlopen(/Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM
> /libs/x86_64/rTANDEM.so, 6): Symbol not found: __ZTIN4Rcpp7RObjectE
>  Referenced from:
> /Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM/libs/x
> 86_64/rTANDEM.so
>  Expected in: dynamic lookup
> 
> Error: package or namespace load failed for 'rTANDEM'
>> sessionInfo()
> R Under development (unstable) (2012-11-27 r61172)
> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
> 
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> other attached packages:
> [1] data.table_1.8.6    Rcpp_0.10.1         XML_3.9-4
> [4] BiocInstaller_1.9.4
> 
> loaded via a namespace (and not attached):
> [1] tools_2.16.0
> 
> 
> Here is the ouput from the machine where the package loads fine on x64 R but fails on i386:
> 
>> library(rTANDEM)
> Loading required package: XML
> Loading required package: Rcpp
> Loading required package: data.table
> data.table 1.8.6  For help type: help("data.table")
> Error in dyn.load(file, DLLpath = DLLpath, ...) :
>  unable to load shared object
> '/Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM/libs/
> i386/rTANDEM.so':
>  dlopen(/Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM
> /libs/i386/rTANDEM.so, 6): Symbol not found: _XML_GetErrorCode
>  Referenced from:
> /Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM/libs/i
> 386/rTANDEM.so
>  Expected in: flat namespace
> in
> /Library/Frameworks/R.framework/Versions/2.16new/Resources/library/rTANDEM/libs/i
> 386/rTANDEM.so
> Error: package or namespace load failed for 'rTANDEM'
> 
> 
> I am left clueless by this. As anyone faced a similar issue?
> 
> Thank you very much for your help!
> 
> Frederic
> 
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