Unable to deploy app on shinyapps.io

I get the following message: "An error has occurred. The application failed to start (exited with code 1).
Error in value [3L] : there is no package called 'shinydashboard' calls: local … tryCatch -> tryCatchList -> tryCatchOne -> Execution halted

I have upgraded my RStudio and all packages to latest version. The 'shinydashboard' package is included in the app's list of libraries. The application works OK locally.

The app still appears in my shinyapps.io dashboard as 'running', but when I try to load it I get the same error message.

Please advice

Kind regards Tore

Please add a library(shinydashboard) call to your R files that you are deploying. If you have multiple files, add it to all of the files.

Please let me know how this works for you.

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