error: The values in a const list literal must be constants. Flutter

Question

can any one tell me why is there an error. im a beginner in flutter. can any one help.

this is the code, the error is on the onpressed fucntion.

Expanded(
                child: TextButton(
                  onPressed: () {},
                  child: Padding(
                    padding: EdgeInsets.all(16.0),
                    child: Image(
                      image: AssetImage('images/dice1.png'),
                    )
                  ),
    
                ),
    
              ),

error:

error: Invalid constant value. (invalid_constant at line 3)
error: The values in a const list literal must be constants. (non_constant_list_element at line 3)

Remove the const keyword you've written near to row children — Midhun MP, Oct 12 '21 at 06:17
thank you @MidhunMP Can You please tell me why, because the it worked after removing the const keyword. — chogyal, Oct 12 '21 at 06:22
https://stackoverflow.com/questions/51576209/flutter-variable-with-const-keyword/51576842 — Midhun MP, Oct 12 '21 at 06:25

score 3 · Accepted Answer · answered Oct 12 '21 at 06:24

3

Don't use the const keyword if you are not using fixed values. Flutter uses the const keyword as an indicator for a widget to never rebuild as it will get evaluated at compile time and only once.

answered Oct 12 '21 at 06:24

Jignesh Patel

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4

error: The values in a const list literal must be constants. Flutter

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