Unable to authenticate

[JosiahParry]

When authenticating with calendar_auth() I run into the below issue.

[jamieRowen]

I have a similar issue

sessionInfo()
R version 4.1.0 (2021-05-18)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 20.04.2 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3

locale:
 [1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C               LC_TIME=en_GB.UTF-8       
 [4] LC_COLLATE=en_GB.UTF-8     LC_MONETARY=en_GB.UTF-8    LC_MESSAGES=en_GB.UTF-8   
 [7] LC_PAPER=en_GB.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C       

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

other attached packages:
[1] gcalendr_0.2.1.9004

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.7         later_1.2.0        pillar_1.6.1       compiler_4.1.0    
 [5] jrApiGitLab_0.1.13 prettyunits_1.1.1  remotes_2.4.0      jrApiUtils_0.2.2  
 [9] tools_4.1.0        pkgbuild_1.2.0     jsonlite_1.7.2     gargle_1.2.0      
[13] lubridate_1.7.10   lifecycle_1.0.0    tibble_3.1.3       pkgconfig_2.0.3   
[17] rlang_0.4.11       rstudioapi_0.13    cli_3.0.1          curl_4.3.2        
[21] yaml_2.2.1         httr_1.4.2         withr_2.4.2        dplyr_1.0.7       
[25] stringr_1.4.0      askpass_1.1        rappdirs_0.3.3     fs_1.5.0          
[29] generics_0.1.0     vctrs_0.3.8        rprojroot_2.0.2    tidyselect_1.1.1  
[33] glue_1.4.2         R6_2.5.0           processx_3.5.2     fansi_0.5.0       
[37] jrApiAsana_0.1.1   tidyr_1.1.3        purrr_0.3.4        callr_3.7.0       
[41] magrittr_2.0.1     promises_1.2.0.1   ps_1.6.0           ellipsis_0.3.2    
[45] timeDate_3043.102  httpuv_1.6.1       utf8_1.2.2         stringi_1.7.3     
[49] openssl_1.4.4      crayon_1.4.1  

[RMHogervorst]

Calender only allows oauth route I believe.