Unable to compile model Error 127

[Ravua1992]

Hello,

I am trying to install mrgsolve on my new computer and it does not work as expected. I am following the instructions as per user guide (https://github.com/metrumresearchgroup/mrgsolve/). I have installed Rtools35 and also changed the system path.
Can you please help me with the installation. Below is the error message when I try to compile model from library.

Thanks,

My system path is as follows

Sys.getenv("PATH")
"c:/Rtools/bin;C:\\Program Files\\R\\R-4.0.3\\bin\\x64;;C:\\Rtools\\bin;C:\\Temp\\Rtools\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\Program Files (x86)\\SafeCom\\SafeComPrintClient;C:\\Program Files (x86)\\OpenText\\Viewer\\bin;C:\\Users\\M88888.ONE\\AppData\\Local\\Microsoft\\WindowsApps;"

`mod <- mread("pk1", modlib())`
Building pk1 ... error.

---:: stderr ::---------------------------------------------
sh: C:/rtools40/mingw64/bin/g++: No such file or directory
make: *** [C:/PROGRA~1/R/R-40~1.3/etc/x64/Makeconf:229: pk1-mread-source.o] Error 127
------------------------------------------------------------
NOTE: 'Error 127' was detected in the above message.
 This possibly indicates that the build toolchain
 could not be found. Please check for proper compiler 
 installation ('Rtools.exe' on Windows).  Also consider
 trying 'pkgbuild::check_build_tools(debug=TRUE)' to
 assist in diagnosing this issue.
------------------------------------------------------------ 
Error: the model build step failed.

sessionInfo()
R version 4.0.3 (2020-10-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] mrgsolve_0.11.1

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.7       fansi_0.5.0      utf8_1.2.2       crayon_1.4.1    
 [5] dplyr_1.0.7      R6_2.5.0         lifecycle_1.0.0  magrittr_2.0.1  
 [9] pillar_1.6.2     rlang_0.4.11     vctrs_0.3.8      generics_0.1.0  
[13] ellipsis_0.3.2   tools_4.0.3      glue_1.4.2       purrr_0.3.4     
[17] compiler_4.0.3   pkgconfig_2.0.3  tidyselect_1.1.1 tibble_3.1.3

[kylebaron]

Can you follow this?
https://cran.r-project.org/bin/windows/Rtools/

Specifically the part on Putting Rtools on the PATH

R is looking for C:/rtools40/mingw64/bin/g++ but you have c:/rtools/... in your path.

[Ravua1992]

Thank you. It works now!