B4X FEED [solved] compiling error

[PracticalSoft]

Might be a bit hard to read: gv is a class with global variables, MpSprache is a map with language-strings.
The text of a label assumes values, dependend of choosen tab-page (mLastTabPage):
B4X:

lbl0.Text=Array As String(gv.MpSprache.Get("fase"),gv.MpSprache.Get("steindurchmesser"),"",gv.MpSprache.Get("steindurchmesser"),gv.MpSprache.Get("jiglen"))(mLastTabPage)
In this above line, I get a compiling-error:

I know, I could solve this by changing the way assigning the .text-value, but I would be interested in the reason of this compiling error.
Thank you in advance!
TH

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