Unable to install packages on RStudio Workbench

[jam_12345]

I've setup RStudio Teams on AWS using the CloudFormation template provided here:
https://docs.rstudio.com/rstudio-team/cloudformation/

I've logged into RStudio Workbench and i'm trying to install a package:

install.packages('janitor')

However this is crashing the session. Any ideas why this might be the case?

[andresrcs]

Do you get any error message before the session crashes? If so, please post it here.

[jam_12345]

Thanks for the response.

Warning: unable to access index for repository http://3.11.79.196/cran/linux/bionic/latest/src/contrib:
cannot open URL 'http://3.11.79.196/cran/linux/bionic/latest/src/contrib/PACKAGES'
04 Jun 2021 13:58:09 [rsession-rstudio-user] ERROR system error 13 (Permission denied) [description: Received stale message with date Fri, 04 Jun 2021 13:51:42 GMT]; OCCURRED AT rstudio::core::Error rstudio::server_core::sessions::verifyRequestSignature(const string&, const string&, const rstudio::core::http::Request&, bool) src/cpp/server_core/sessions/SessionSignature.cpp:139; LOGGED FROM: bool rstudio::session::{anonymous}::verifyRequestSignature(const rstudio::core::http::Request&) src/cpp/session/SessionHttpMethods.cpp:361

[alexkgold]

Hello @jam_12345,

Since you're on a trial of our professional products, please feel free to reach out to our Premium Support on this issue: How do I submit a Support ticket? – RStudio Support

[andresrcs]

@jam_12345

Warning: unable to access index for repository http://3.11.79.196/cran/ linux /bionic/latest/src/contrib:

This seems to me like a connectivity issue, R is not being able to connect to the package repository you have selected, because of the lack of a security certificate, try disabling the secure download setting.

[jam_12345]

This worked for me. Many thanks!