A non-null String must be provided to a Text widget

Question

I\'m trying to add the option for the quantity to be adjusted but I get an error saying \"A non-null String must be provided to a Text widget\" How do I provide this, to this co

Answer 1

The value may be empty therefore youre getting a null error try this if its an optional field:

new Text(cart_prod_qty == null ? '' : cart_prod_qty),

Answer 2

just set Text widget value optional like

Text(value ?? ""),

Answer 3

I have faced that same problem.... I have resolved it by using a "new" keyword before Text...

child: new Text(mydata[1]["2"][k]),

Answer 4

Just check for null and give a default

Text(cart_prod_qty!=null?cart_prod_qty:'default value'),

You can keep it empty if you wish

Text(cart_prod_qty!=null?cart_prod_qty:''),

Or else you can make text widget optional

cart_prod_qty!=null? Text(cart_prod_qty): Container()

Answer 5

I GOT SAME ERROR DUE TO THIS

BEFORE:

title:  Text(widget.title)

AFTER:

title:  Text('ram')

THIS SOLVED MY ERROR

To solve this error Add Double quote or single quote title: Text('ram')

Answer 6

You should check null safe

Text(cart_prod_qty??'default value'),