Error when publishing Shiny application with Bioconductor packages after specifying the Bioconductor repo

Hi, guys, I am building a shiny application with Bioconductor packages. I already specified the Bioconductor repo, the app runs well locally, and I am using packrat for this project. While publishing on shiny.io, I still got an error of updating "GenomicFeatures", but Packrat showed me I already installed the latest Windows binary version 1.32.2 of GenomicFeatures. Any idea what might be wrong?

error: Building package: GenomicFeatures
Unhandled Exception: Child Task 561487436 failed: Error building image: Error fetching GenomicFeatures (1.32.2) source. Error downloading package source. Please update your BioConductor packages to the latest version and try again
sessionInfo() 
R version 3.5.0 (2018-04-23) 
Platform: x86_64-w64-mingw32/x64 (64-bit) 
Running under: Windows >= 8 x64 (build 9200) 
Matrix products: default 
locale:
[1] LC_COLLATE=Chinese (Simplified)_China.936  LC_CTYPE=Chinese 
(Simplified)_China.936   
[3] LC_MONETARY=Chinese (Simplified)_China.936 LC_NUMERIC=C                              
[5] LC_TIME=Chinese (Simplified)_China.936    

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

loaded via a namespace (and not attached):
[1] compiler_3.5.0       BiocInstaller_1.30.0 tools_3.5.0          
packrat_0.4.9-3     



getOption("repos")
                                           BioCsoft                                                 
BioCann 
       "https://bioconductor.org/packages/3.7/bioc" 
"https://bioconductor.org/packages/3.7/data/annotation" 
                                            BioCexp                                           
BioCworkflows 
"https://bioconductor.org/packages/3.7/data/experiment"       
"https://bioconductor.org/packages/3.7/workflows" 
                                               CRAN 
                        "https://cran.rstudio.com/"