Hi! I'm trying to do the exercise in the textbook "R for Mass Spectrometry" (https://rformassspectrometry.github.io/book/sec-msintro.html), but am unable to access the demo dataset. I have Bioconductor version 3.19 (BiocManager 1.30.25), R 4.4.1 (2024-06-14).

> sessionInfo( )
R version 4.4.1 (2024-06-14)
Platform: aarch64-apple-darwin20
Running under: macOS Sonoma 14.5

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: America/New_York
tzcode source: internal

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

other attached packages:
[1] rpx_2.12.0

loaded via a namespace (and not attached):
 [1] vctrs_0.6.5          httr_1.4.7           cli_3.6.3            rlang_1.1.4         
 [5] DBI_1.2.3            BiocFileCache_2.12.0 purrr_1.0.2          generics_0.1.3      
 [9] jsonlite_1.8.9       glue_1.7.0           bit_4.5.0            RCurl_1.98-1.16     
[13] dbplyr_2.5.0         fansi_1.0.6          filelock_1.0.3       tibble_3.2.1        
[17] bitops_1.0-8         fastmap_1.2.0        lifecycle_1.0.4      memoise_2.0.1       
[21] BiocManager_1.30.25  compiler_4.4.1       dplyr_1.1.4          RSQLite_2.3.7       
[25] blob_1.2.4           pkgconfig_2.0.3      rstudioapi_0.16.0    R6_2.5.1            
[29] tidyselect_1.2.1     utf8_1.2.4           curl_5.2.3           pillar_1.9.0        
[33] magrittr_2.0.3       withr_3.0.1          tools_4.4.1          bit64_4.0.5         
[37] xml2_1.3.6           cachem_1.1.0  


> px <- PXDataset("PXD000001")
Querying ProteomeXchange for PXD000001.
Error in open.connection(con, open = mode) : 
  Timeout was reached: [ftp.pride.ebi.ac.uk] Connection time-out
> px <- PXDataset("PXD046229")
Querying ProteomeXchange for PXD046229.
Error in open.connection(con, "rb") : 
  cannot open the connection to 'https://www.ebi.ac.uk/pride/ws/archive/v2/projects/PXD046229'
In addition: Warning message:
In open.connection(con, "rb") :
  cannot open URL 'https://www.ebi.ac.uk/pride/ws/archive/v2/projects/PXD046229': HTTP status was '400 Bad Request'
> px <- PXDataset("PXD050510")
Querying ProteomeXchange for PXD050510.
Error in open.connection(con, "rb") : 
  cannot open the connection to 'https://www.ebi.ac.uk/pride/ws/archive/v2/projects/PXD050510'
In addition: Warning message:
In open.connection(con, "rb") :
  cannot open URL 'https://www.ebi.ac.uk/pride/ws/archive/v2/projects/PXD050510': HTTP status was '400 Bad Request'