ShinydashboardPlus: "Error in validateBoxProps(title = title, label = label, sidebar = sidebar, : is.numeric(width) is not TRUE"

Question

Error in validateBoxProps(title = title, label = label, sidebar = sidebar,  :is.numeric(width) is not TRUE

Has anyone seen this code while trying to run a Shiny app? It appeared when I started using library(shinydashboardPlus) and specifically the dropdownBlock command. I cannot find the trigger and the error sometimes disappears if I force kill R and rerun but has made my app very unstable.

Answer 1

I get the same error since a couple of days. For reasons I do not understand, setting the width option of a box to "100%" doesn't work anymore. If you defined the width of a box in your code, try setting it to (a fraction of) 12. From the help:

The width of the box, using the Bootstrap grid system. This is used for row-based layouts. The overall width of a region is 12, so the default valueBox width of 4 occupies 1/3 of that width. For column-based layouts, use NULL for the width; the width is set by the column that contains the box.

Answer 2

Use shinydashboard::box that seems to fix the issue