R Under development (unstable) (2024-07-05 r86875 ucrt) -- "Unsuffered Consequences"
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> packageVersion("qgisprocess")
[1] '0.4.0'
> 
> library(qgisprocess)
Attempting to load the package cache ... No cache found.
Will try to reconfigure qgisprocess and build new cache ...

>>> PROBLEM encountered: couldn't build and save package cache! <<<
The 'qgis_process' command-line utility was either not found or
did not fulfil the needs to build the package cache.
Please run `qgis_configure()` to fix this and rebuild the cache.
See its documentation if you need to preset the path of qgis_process.
If the problem persists, make sure that you correctly installed QGIS
for your operating system using the instructions at
<https://download.qgis.org>.
> 
> qgis_configure(use_cached_data = TRUE) # triggers reconfiguration if needed
No cache found.
Will try to reconfigure qgisprocess and build new cache ...
getOption('qgisprocess.path') was not found.
Sys.getenv('R_QGISPROCESS_PATH') was not found.
Trying 'qgis_process' on PATH...
'qgis_process' is not available on PATH.
No QGIS installation containing 'qgis_process' found!> 
> has_qgis()
[1] FALSE
> 
> if (qgisprocess:::is_macos()) qgis_detect_macos_paths()
> if (qgisprocess:::is_windows()) qgis_detect_windows_paths()
character(0)
> 
> if (has_qgis()) qgis_path()
> if (has_qgis()) qgis_version()
> 
> if (has_qgis()) qgis_version(debug = TRUE)
> 
> if (has_qgis()) qgis_using_json_output()
> if (has_qgis()) qgis_using_json_input()
> 
> if (has_qgis()) cat(qgis_run()$stdout)
> if (has_qgis()) cat(qgis_run()$stderr)
> 
> if (has_qgis()) qgis_plugins()
> 
> if (has_qgis()) qgis_providers()
> 
> if (has_qgis()) qgis_algorithms()
> 
> if (has_qgis()) qgis_algorithms()$algorithm
> 
> proc.time()
   user  system elapsed 
   0.68    0.25    1.01