B4J Question [banano] [sithasodaisy] Uncaught (in promise) TypeError: Cannot read properties of null (reading 'append')

giannimaione

Well-Known Member
Licensed User
Longtime User
hello,
attach file with a demo;
i want build page with sithasodaisy, via code without Internal Design - abstract designer
log error:
B4X:
'Uncaught (in promise) TypeError: Cannot read properties of null (reading 'append')
Log("start build page")
    page.Root.DesignMode(False)
    Log("center the page container")
    page.Root.MXAuto
    Log("add 5 rows, each having 2 columns, each spanning 6")
    page.Root.AddRows5.AddColumns12
  
    Log("build the grid")
    ' Uncaught (in promise) TypeError: Cannot read properties of null (reading 'append')
    page.Root.BuildGrid
any help ?
 

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