flutter: Expected to find '}'. in if else condition

Question

In GestureDetector in onTap event i have a if condition like this:

Positioned(
  left: 1.0,
  top: -20.0,
  child: GestureDetector(
    onTap: () => {
      if (widget.status == RemoteStatus.edit)
        {
          showChooseProfileScreen(0).then((val) {
            if (val != null && val) {
              print("------> $val");
            }
          })
        }
      else {
        if (!onTapRaised)
        {
          sendCommand(54); //Expected to find '}'. error
          onTapRaised = true;
          releaseTapRaised(onTapRaised);
        }
      }
    },
    child: Container(
      margin: EdgeInsets.only(left: 20.0, top: 20.0),

Someone knows why i got error Expected to find '}'. in sendCommand(54); part?

I run flutter clean before but i still got this error.

Answer 1

Change

onTap: () => {

to

onTap: () {

Because otherwise Dart interprets it as if you were returning map literal, not executing set of instructions.

Example:

Map foo() => {'key': 'value'}; // returns Map
void bar() { print('just executes set of instructions'); } // returns void

Refer to Functions section in the Language tour.