* installing to library '/home/runner/R-patched/lib'
* installing *source* package 'jrSiCKLSNMF' ...
** this is package 'jrSiCKLSNMF' version '1.2.3'
** package 'jrSiCKLSNMF' successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C++ compiler: 'g++ (Alpine 14.2.0) 14.2.0'
make[1]: Entering directory '/var/local/PKGS/CRAN/jrSiCKLSNMF/src'
g++ -std=gnu++17 -I"/home/runner/R-patched/build/include" -DNDEBUG  -I'/home/runner/R-patched/lib/Rcpp/include' -I'/home/runner/R-patched/lib/RcppArmadillo/include' -I'/home/runner/R-patched/lib/RcppProgress/include' -I/usr/local/include   -fopenmp -fpic  -O2 -mtune=native -Wno-ignored-attributes -D__MUSL__   -c RcppExports.cpp -o RcppExports.o
g++ -std=gnu++17 -I"/home/runner/R-patched/build/include" -DNDEBUG  -I'/home/runner/R-patched/lib/Rcpp/include' -I'/home/runner/R-patched/lib/RcppArmadillo/include' -I'/home/runner/R-patched/lib/RcppProgress/include' -I/usr/local/include   -fopenmp -fpic  -O2 -mtune=native -Wno-ignored-attributes -D__MUSL__   -c jrSiCKLSNMF.cpp -o jrSiCKLSNMF.o
In file included from /usr/include/fortify/unistd.h:23,
                 from /home/runner/R-patched/lib/RcppArmadillo/include/current/armadillo:85,
                 from /home/runner/R-patched/lib/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:57,
                 from /home/runner/R-patched/lib/RcppArmadillo/include/RcppArmadillo.h:32,
                 from jrSiCKLSNMF.cpp:2:
jrSiCKLSNMF.cpp: In function 'Rcpp::List jrSiCKLSNMF(const Rcpp::List&, Rcpp::List&, arma::mat&, const Rcpp::List&, const Rcpp::List&, const Rcpp::List&, const double&, const arma::uvec&, bool, std::string, std::string, double, int, bool, bool, int, bool, int)':
jrSiCKLSNMF.cpp:287:13: error: conversion from 'std::nullptr_t' to 'Rcpp::List' {aka 'Rcpp::Vector<19>'} is ambiguous
  287 |      return NULL;
      |             ^~~~
In file included from /home/runner/R-patched/lib/Rcpp/include/Rcpp/Vector.h:51,
                 from /home/runner/R-patched/lib/Rcpp/include/Rcpp.h:41,
                 from /home/runner/R-patched/lib/RcppArmadillo/include/RcppArmadillo.h:35:
/home/runner/R-patched/lib/Rcpp/include/Rcpp/vector/Vector.h:107:5: note: candidate: 'Rcpp::Vector<RTYPE, StoragePolicy>::Vector(const char*) [with int RTYPE = 19; StoragePolicy = Rcpp::PreserveStorage]'
  107 |     Vector( const char* st ) {
      |     ^~~~~~
/home/runner/R-patched/lib/Rcpp/include/Rcpp/vector/Vector.h:71:5: note: candidate: 'Rcpp::Vector<RTYPE, StoragePolicy>::Vector(SEXP) [with int RTYPE = 19; StoragePolicy = Rcpp::PreserveStorage; SEXP = SEXPREC*]'
   71 |     Vector( SEXP x ) {
      |     ^~~~~~
make[1]: *** [/home/runner/R-patched/build/etc/Makeconf:211: jrSiCKLSNMF.o] Error 1
make[1]: Leaving directory '/var/local/PKGS/CRAN/jrSiCKLSNMF/src'
make[1]: Entering directory '/var/local/PKGS/CRAN/jrSiCKLSNMF/src'
make[1]: Leaving directory '/var/local/PKGS/CRAN/jrSiCKLSNMF/src'
ERROR: compilation failed for package 'jrSiCKLSNMF'
* removing '/home/runner/R-patched/lib/jrSiCKLSNMF'