Error in .tag_validate(tag, name = "div", class = "form-group shiny-input-container")

[junjunlab]

Hi,thank you for your great package on shiny.But i got errors when i add a help link on a button,this is the error infomation: Error in .tag_validate(tag, name = "div", class = "form-group shiny-input-container") : class is: uiform, needs to include: form-groupshiny-input-container, And this is my code: selectInput( inputId = "letter", label = "Label with popover help", choices = c("a", "b", "c") ) %>% shinyInput_label_embed( shiny_iconlink() %>% bs_embed_popover( title = "Letter", content = "Choose a favorite", placement = "left" ) )

I don't how to solve it,thank you for your help!