Data conversion failed from text to number

[simsim]

Hello, dear forum. I have this error:
data conversion failed from text to number.
how can I fix it? when I run my simulation it works properly but when I run optimizer this error happens. even I updated my Rhino in case the grasshopper has any problem. I will be thankful if anyone helps me.

[akilli (Ethan Gross)]

You are reading out of a text box, so the List Item is actually selecting text, not number. Put a Num parameter (the one that says “.1”) between the text box and the List Item, to recast it into a number.

[simsim]

Thank you @akilli. you helped me a lot.

_Sima

[thomas.lagarde]

A number parameter ? Is that a component ? I can’t find it by typing this name.

[wim (Wim Dekeyser)]

Hi Thomas -

@thomas.lagarde

Is that a component ?

Strictly speaking, no.
It’s a parameter.

@thomas.lagarde

I can’t find it by typing this name.

-wim

[thomas.lagarde]

Oh yeah, just beware, default panel setup is

Multiline Data and Wrap Items

You need to uncheck multiline data, not very newbie friendly