Building R package "no visible global function definition for" shiny functions

Question

Im trying to check my own package with

Rcmd.exe check dbt.ORA_1.0.tar.gz.

despite of adding "Depends: shiny in the Description file,

I get alot of warnings like this:

...

• dbtORA: no visible global function definition for 'runApp'
• dbtORA: no visible global function definition for 'fluidPage'
• dbtORA: no visibleglobal function definition for 'titlePanel'
• dbtORA: no visible global function definition for 'sidebarLayout'
• dbtORA: no visible global function definition for 'sidebarPanel'
• dbtORA: no visible global function definition for 'selectInput'
• dbtORA: no visible global function definition for 'checkboxInput'
• dbtORA: no visible global function definition for 'conditionalPanel'
• dbtORA: no visible global function definition for 'numericInput'
• dbtORA: no visible global function definition for 'actionButton'
• dbtORA: no visible global function definition for 'mainPanel'
• dbtORA: no visible global function definition for 'textOutput'
• dbtORA: no visible global function definition for 'uiOutput'

...

the function dbtORA is very long, the source code is like this:

dbtORA <-function(){
...
outputApp=runApp(list(
  ui = fluidPage(
...
),
 server = function(input, output, session){
...
  }  
))
...
return(outputApp=NamedORAResults)}

I have in this context also a second question:

How do I declare functions, which are only locally defined, e.g. in

dbtORA <-function(){
...
matlabmin=function(...){...}
...}

gives the warning:

• dbtORA: no visible global function definition for 'matlabmin'

Answer 1

For all of you, who have the same problem:

1. In the DESCRIPTION file you have to write

   Imports: shiny

   and not

   Depends: shiny

2. In the NAMESPACE file you have to write

   import(shiny)
   

No clue, why it has to be done like this only with shiny...