Flutter - The getter 'length' was called on null
In our case, we got this error when Internet Connection is off after calling webservice.
First one check spieler_namen is null or not.If it is null then use below code i hope this will solve your problem.....
if(spieler_namen == null){
new Container(width: 10.0,height: 10.0,);
}else{
your requirement .......
}
We spend lost's of time to resolve issue finally we got a solution is: Please check you pubspec.yaml and remove extra '-' in case of assets file and also please follow the structure of that like spacing and all that.
We are must sure that issue only in pubspec.yaml file
punkteanzahl_teamEins is only declared. But not initialized. So it is throwing null error.
You should assign value to punkteanzahl_teamEins
as
List<int> punkteanzahl_teamEins = [1,4,5,7];
or pass data from parent as requirement.