Unable to Publish Shiny.io for using Rstudio on shinyapp.io

Hello
For my JHU Capstone project - I am running into issue for publishing in shiny
Link: https://gabeesh.shinyapps.io/JHU_DS_CAPSTONE/

Deployment Log:
Preparing to deploy application...DONE
Uploading bundle for application: 3006333...DONE
Deploying bundle: 3735986 for application: 3006333 ...
Waiting for task: 805991482
building: Parsing manifest
building: Building image: 4215823
error: Building package: viridisLite
################################ Begin Task Log ################################
################################# End Task Log #################################
Error: Unhandled Exception: Child Task 805991485 failed: Error building image: Error building viridisLite (0.3.0). R version 4.0.3 currently unavailable
Execution halted

DETAIL of LOG:
Session information:
R version 4.0.3 (2020-10-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18362)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

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

loaded via a namespace (and not attached):
[1] compiler_4.0.3 rsconnect_0.8.16
Cookies:
[1] "None"
GET /v1/applications/3006333 769ms
----- Bundle upload started at 2020-10-13 11:41:10 -----
[2020-10-13 11:41:10] Inferring App mode and parameters
[2020-10-13 11:41:10] Bundling app dir
[2020-10-13 11:41:10] Generate manifest.json
[2020-10-13 11:41:55] Writing Rmd index if necessary
[2020-10-13 11:41:55] Compressing the bundle
POST /v1/bundles 420ms
[2020-10-13 11:41:56] Starting upload now
PUT /bundles/application-3006333/e13297a4fe55400a879907171fc056b3.tar.gz?AWSAccessKeyId=ASIA54P7SCTK3FIGVPH5&x-amz-acl=bucket-owner-full-control&Expires=1602618116&content-md5=6qIF0u%2FGuB9VztC7R28y%2Fw%3D%3D&x-amz-security-token=IQoJb3JpZ2luX2VjEG8aCXVzLWVhc3QtMSJHMEUCIHckXKA8SLDh8c312nhCky7KLj0ypvV9IOQDlIWP3oS3AiEA7gc5%2FJXMPYAFKLgaVK77qhmgRgJb32hRED5fFXTniOEqvQMIqP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAAGgw5NTQ1NTU1NjkzNjUiDFurDoSo5wD4McGduSqRAwMDZ2df%2BdPyLjBYu2C8tppYOLKkhzfLiQL58iRBZyIwRa83fWN%2FyXO9%2FNthSZf1AVQczrdDILOZri4oGb%2F6eQWDDjc7qN4wCbNHR282IOTEl%2Bcv3ogbctRwukM%2BgLUxlMqCIY7A10k1KBLrCSpHMm2UXvC%2BGZjoDTn%2B4QO0cS%2FUdYHjpwsHYzthjA3aYQoMcT4P1JiS9IFmib4Subllyan568p3tWmzWdQN%2BwIsgt1CPn8z8DHSpab1hz39EswQjzutulH9tk8haSDYW0simwxQQDcGFCJ2r7kon2XqAB4ldzaDgfchc74ehomuj5bwV%2Bw2YOOKclY7saZ1Br0H7gcPan4j5UwaPSnepotZ0RV8dkN6lfFv9YjeMLRaMGmh%2BgqaBjiBMxpPY%2F7RBLVu01rT1gJee%2BDObClJuZrRoJUmhkRYW14VwfscVyfDvwf6ZKyChy2I40zXlcR4Ai1JC2B%2F0GfOtNktztxSK1tnWK8XTelqN16Pu0VI5Vsa8DmOMuOUXL2d%2BrcqhM6KBdTDzN8PMO3%2FlvwFOusB8s%2FKn6ZXA7Bs8Mvqa2Tk%2BKaPXkiXqWdQHpSRaimQjJ9u8edlw8kKT1HjmwLNl9h7hlQ3ILJ40mldEj6szzhBlrOcT8SPZ50RZtyLx8CwKiVtDVJrA5b0tN5Eex2AtyYRYL1oPHcn9%2B%2F3ugG%2BmeEoFBZB1A%2BKArXu9cUqp1ABGBmTUVBCcoxrLKKnGY5irJa6sSq3NuSvikLqlR9HLudCzhebS5SYTs3nTtctrD8j0b6GrljfghH3J17g0XUa7sZUxt9bzBMao5%2BqSDjJpd9Zl9kplMc%2FMm3RKKeLj05r3px7o%2Bpn%2Fl0l4wA54Q%3D%3D&Signature=nwdlbXwBNKDdLkd66xfWkszNl3Q%3D&content-type=application%2Fx-tar 939ms
[2020-10-13 11:41:57] Upload complete
POST /v1/bundles/3736036/status 439ms
GET /v1/bundles/3736036 390ms
[2020-10-13 11:41:58] Saving deployment record for JHU_DS_CAPSTONE -
----- Server deployment started at 2020-10-13 11:41:58 -----
POST /v1/applications/3006333/deploy 600ms
Waiting for task: 805998537
GET /v1/tasks/805998537 369ms
GET /v1/tasks/805998537 390ms
building: Parsing manifest
GET /v1/tasks/805998537 450ms
GET /v1/tasks/805998537 420ms
building: Building image: 4215910
GET /v1/tasks/805998537 439ms
GET /v1/tasks/805998537 740ms
error: Building package: viridisLite
################################ Begin Task Log ################################
GET /v1/tasks/805998537/logs/ 390ms
GET /v1/tasks/?filter=account_id:349347&filter=parent_id:805998537&count=100&offset=0 409ms
GET /v1/tasks/805998540/logs/ 380ms
GET /v1/tasks/?filter=account_id:349347&filter=parent_id:805998540&count=100&offset=0 359ms
################################# End Task Log #################################
----- Deployment error -----
Error: Unhandled Exception: Child Task 805998540 failed: Error building image: Error building viridisLite (0.3.0). R version 4.0.3 currently unavailable

----- Error stack trace -----
Error: Unhandled Exception: Child Task 805998540 failed: Error building image: Error building viridisLite (0.3.0). R version 4.0.3 currently unavailable
Error during wrapup: length(max.lines) <= 1 is not TRUE
Error: no more error handlers available (recursive errors?); invoking 'abort' restart
Execution halted

You're running a version of R that's only 3 days old, I'm wondering if its possible that shinyapps.io doesn't support it yet :thinking:

Same issue here

Error: Unhandled Exception: Child Task 806535062 failed: Error building image: Error building withr (2.3.0). R version 4.0.3 currently unavailable
Execution halted