[R-pkg-devel] devtools::check() endless loop

[Duncan Murdoch]

You won't get that error if you follow Martin's advice and use `R CMD 
build pkg`, followed by `R CMD check pkg_x.tar.gz`, you'll probably get 
more informative messages.

 From the path reported below, it looks like you are using Windows, so 
my guess is that you do not have Rtools installed, or don't have it 
available to the check process (maybe the tools are not on your PATH).

See https://cran.r-project.org/bin/windows/base/howto-R-4.5.html for 
lots of detail.

Duncan Murdoch

On 2025-12-04 9:22 a.m., Hüsing, Johannes via R-package-devel wrote:
> When I am trying to build a package, the system stops with request to run a function call, which, when executed, displays the same error message again. What would be an appropriate way to break that loop?
> 
>> devtools::check()
> ══ Documenting ═════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════
> ℹ Updating staduicc documentation
> ℹ Loading staduicc
> 
> ══ Building ════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════
> Setting env vars:
> • CFLAGS    : -Wall -pedantic
> • CXXFLAGS  : -Wall -pedantic
> • CXX11FLAGS: -Wall -pedantic
> • CXX14FLAGS: -Wall -pedantic
> • CXX17FLAGS: -Wall -pedantic
> • CXX20FLAGS: -Wall -pedantic
> ── R CMD build ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
> * checking for file '\\LKR-FILESRV\Epidemiologie\Materialien_Software\staduicc/DESCRIPTION' ... OK
> * preparing 'staduicc':
> * checking DESCRIPTION meta-information ... OK
> * excluding invalid files
> Subdirectory 'R' contains invalid file names:
>    '.gitkeep'
> * checking for LF line-endings in source and make files and shell scripts
> * checking for empty or unneeded directories
> * building 'staduicc_0.3.1.tar.gz'
> 
> ══ Checking ════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════
> Setting env vars:
> • _R_CHECK_CRAN_INCOMING_REMOTE_               : FALSE
> • _R_CHECK_CRAN_INCOMING_                      : FALSE
> • _R_CHECK_FORCE_SUGGESTS_                     : FALSE
> • _R_CHECK_PACKAGES_USED_IGNORE_UNUSED_IMPORTS_: FALSE
> • NOT_CRAN                                     : true
> Error: Could not find tools necessary to compile a package
> Call `pkgbuild::check_build_tools(debug = TRUE)` to diagnose the problem.
>> pkgbuild::check_build_tools(debug = TRUE)
> Error: Could not find tools necessary to compile a package
> Call `pkgbuild::check_build_tools(debug = TRUE)` to diagnose the problem.
>> pkgbuild::check_build_tools(debug = TRUE)
> Error: Could not find tools necessary to compile a package
> Call `pkgbuild::check_build_tools(debug = TRUE)` to diagnose the problem.
>> pkgbuild::check_build_tools(debug = TRUE)
> Error: Could not find tools necessary to compile a package
> Call `pkgbuild::check_build_tools(debug = TRUE)` to diagnose the problem.
>>
> 
> 
> Dr. Johannes Hüsing
> Epidemiologie
> 
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