On 1 December 2016 at 17:15, Aarti Singh wrote:
| Hello,
|
| I am new to R package development. I am working on a package that has in
| its src folder one (prime) cpp file and some helper cpp (X.Cpp, Y.Cpp) and
| one c file (Z.C) and their header files (X.h, Y.h and Z.h)
|
| I am getting the following error when I do 'Build & Reload' in Rstudio.
|
| "
| Error in dyn.load(dllfile) :
| unable to load shared object '/Users/abcd/BART/bart_pkg1/src/bartpkg.so':
| dlopen(/Users/abcd/BART/bart_pkg1/src/bartpkg.so, 6): Symbol not found:
| __ZN3RNG4nfixElm
| Referenced from: /Users/abcd/BART/bart_pkg1/src/bartpkg.so
| Expected in: flat namespace
| in /Users/abcd/BART/bart_pkg1/src/bartpkg.so
| Calls: suppressPackageStartupMessages ... -> load_all ->
| load_dll -> library.dynam2 -> dyn.load
| Execution halted
|
| Exited with status 1.
|
| "
|
| I have followed the basic guidelines to build the package.
|
| The .R file has directive #' @useDynLib bartpkg in the right place.
|
| Also, the prime cpp file has the following tags in the right place.
| 1. #include
| using namespace Rcpp;
| 2. //' @param x A single integer.
| //' @export
| // [[Rcpp::export]]
|
|
| And my NAMESPACE file shows 'useDynLib(bartpkg)' correctly.
|
| I am able to see the 'bartpkg.so' shared object file in the src directory.
|
|
| I tried in the terminal this command "c++filt -n _ZN3RNG4nfixElm" and was
| able to see that the symbol in the error ' Symbol not found:
| __ZN3RNG4nfixElm' is coming from the .C file RNG.C and is because of a
| function 'nfix'.
|
| But even if I remove the function 'nfix' or remove the RNG.C file
| altogether, the same error ' Symbol not found: __ZN3RNG4nfixElm' comes.
|
| can it be a flag issue that my compiler is not able to compile the 'C'
| file?
| I am able to see that all the cpp files generate respective object files,
| but I dont see anything like that for the C file.
|
| I am using RStudio is the session info is
| > sessionInfo()
| R version 3.3.1 (2016-06-21)
| Platform: x86_64-apple-darwin13.4.0 (64-bit)
| Running under: OS X 10.11.6 (El Capitan)
|
| 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] bartpkg_0.1.0packrat_0.4.8-1 Rcpp_0.12.8
| msm_1.6.4LaplacesDemon_16.0.1
|
| loaded via a namespace (and not attached):
| [1] roxygen2_5.0.1 lattice_0.20-34 mvtnorm_1.0-5 digest_0.6.10
| grid_3.3.1 magrittr_1.5
| [7] stringi_1.1.2 Matrix_1.2-7.1 splines_3.3.1 tools_3.3.1
| stringr_1.1.0 survival_2.39-5
| [13] parallel_3.3.1 rsconnect_0.5 inline_0.3.14 expm_0.999-0
|
| I am stuck at this problem for weeks now.
| Any help would be highly appreciated.
Please don't cross post, but I just gave you a hint at your identical
StackOverflow question:
http://stackoverflow.com/questions/40922814/error-in-dyn-loaddllfile-unable-to-load-shared-object-expected-in-flat-na#comment69060886_40922814
Dirk
| Thank you.
|
| -Aarti
|
| [[alternative HTML version deleted]]
|
| __
| R-package-devel@r-project.org mailing list
| https://stat.ethz.ch/mailman/listinfo/r-package-devel
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
__
R-package-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel
