TimeScale Formatter Error

[pome90]

Hello using TimeScale class with formatter result in this error:

Dart Unhandled Exception: type '(DateTime) => String' is not a subtype of type '(dynamic) => String', stack trace: #0 TickInfoOp.evaluate.
package:graphic/…/axis/axis.dart:211

Example code:

final data = [
{"Date": DateTime(2021, 4, 1), "ET": 6,},
{"Date": DateTime(2021, 5, 3), "ET": 5},
{"Date": DateTime(2021, 5, 5), "ET": 8},
{"Date": DateTime(2021, 5, 7), "ET": 10},
{"Date": DateTime(2021, 5, 20), "ET": 11},
{"Date": DateTime(2021, 5, 29), "ET": 9}
];

Chart(
data: data,
variables: {
'Date': Variable(
accessor: (Map map) =>
(map['Date'] ?? double.nan) as DateTime,
scale: TimeScale(
tickCount: 3,
formatter: (x) {
return '${x.day}';
}
)
),
'ET': Variable(
accessor: (Map map) =>
(map['ET'] ?? double.nan) as num,
),
},
)

[entronad]

It is caused by a generic bug of Scale.formatter.
It has been fixed in v0.5.0. Please upgrade and try.