'package:flushbar/flushbar_route.dart': Failed assertion: line 308 pos 18: 'overlayEntries.isEmpty': is not true.

[liudonghua123]

Describe the bug

I just invoke the following code snippet in a onPressed callback of button.

                                  var flushbar = Flushbar(
                                    title: '操作结果',
                                    message: '${userDetail.username} 下线成功',
                                    backgroundColor: Colors.green,
                                    flushbarStyle: FlushbarStyle.GROUNDED,
                                    duration: Duration(seconds: 1),
                                  );
                                  await flushbar.show(context);

Paste relevant code

                            RaisedButton(
                              color: Colors.blue,
                              child: Text(
                                '下线',
                                style: defaultWhiteTextStyle,
                              ),
                              onPressed: () async {
                                var result = true;
                                if (result) {
                                  var flushbar = Flushbar(
                                    title: '操作结果',
                                    message: '${userDetail.username} 下线成功',
                                    backgroundColor: Colors.green,
                                    flushbarStyle: FlushbarStyle.GROUNDED,
                                    duration: Duration(seconds: 1),
                                  );
                                  await flushbar.show(context);
                                } else {
                                  Flushbar(
                                    title: '操作结果',
                                    message: '${userDetail.username} 下线失败',
                                    backgroundColor: Colors.red,
                                    flushbarStyle: FlushbarStyle.GROUNDED,
                                    duration: Duration(seconds: 1),
                                  )..show(context);
                                }
                              },
                            ),

More detailed logs

════════ Exception caught by animation library ═════════════════════════════════
The following assertion was thrown while notifying status listeners for AnimationController:
'package:flushbar/flushbar_route.dart': Failed assertion: line 308 pos 18: 'overlayEntries.isEmpty': is not true.

When the exception was thrown, this was the stack
#2      FlushbarRoute._handleStatusChanged
package:flushbar/flushbar_route.dart:308
#3      AnimationLocalStatusListenersMixin.notifyStatusListeners
package:flutter/…/animation/listener_helpers.dart:199
#4      AnimationController._checkStatusChanged
package:flutter/…/animation/animation_controller.dart:795
#5      AnimationController._tick
package:flutter/…/animation/animation_controller.dart:811
#6      Ticker._tick
package:flutter/…/scheduler/ticker.dart:238
...
The AnimationController notifying status listeners was: AnimationController#8dc1d(⏮ 0.000; paused; for FlushbarRoute<dynamic>)
════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by animation library ═════════════════════════════════
'package:flushbar/flushbar_route.dart': Failed assertion: line 308 pos 18: 'overlayEntries.isEmpty': is not true.
════════════════════════════════════════════════════════════════════════════════

[dimple3695]

Having same issue. @liudonghua123 Have you got any solution?

[rokk4]

Also with me.
But snackbar is shown like it should.

                      FlushbarHelper.createError(
                        message: failure.map(
                          cancelledByUser: (_) => 'Cancelled',
                          serverError: (_) => 'Server error',
                          emailAlreadyInUse: (_) => 'Email already in use',
                          invalidEmailAndPasswordCombination: (_) =>
                              'Invalid email and password combination',
                        ),
                      ).show(context)

Results in:

════════ Exception caught by animation library ═════════════════════════════════════════════════════
The following assertion was thrown while notifying status listeners for AnimationController:
'package:flushbar/flushbar_route.dart': Failed assertion: line 308 pos 18: 'overlayEntries.isEmpty': is not true.

When the exception was thrown, this was the stack: 
#2      FlushbarRoute._handleStatusChanged (package:flushbar/flushbar_route.dart:308:18)
#3      AnimationLocalStatusListenersMixin.notifyStatusListeners (package:flutter/src/animation/listener_helpers.dart:199:19)
#4      AnimationController._checkStatusChanged (package:flutter/src/animation/animation_controller.dart:795:7)
#5      AnimationController._tick (package:flutter/src/animation/animation_controller.dart:811:5)
#6      Ticker._tick (package:flutter/src/scheduler/ticker.dart:238:12)
...
The AnimationController notifying status listeners was: AnimationController#82bcc(⏮ 0.000; paused; for FlushbarRoute<dynamic>)
════════════════════════════════════════════════════════════════════════════════════════════════════

[liudonghua123]

@dimple3695 Hi, I did not find a solution, and finally I changed to another package https://pub.dev/packages/overlay_support.

[Zony-Zhao]

same Problem here!

[fsteenkamp]

Same issue for me, seems to be working fine but the error is annoying

[wojtekoziol]

Same issue here. Works fine, but throws an error when Flushbar is hiding

[devj3ns]

I have the same issue. Works fine until the Flushbar is closed.

The following assertion was thrown while notifying status listeners for AnimationController:
'package:flushbar/flushbar_route.dart': Failed assertion: line 308 pos 18: 'overlayEntries.isEmpty': is not true.

When the exception was thrown, this was the stack: 
#2      FlushbarRoute._handleStatusChanged (package:flushbar/flushbar_route.dart:308:18)
#3      AnimationLocalStatusListenersMixin.notifyStatusListeners (package:flutter/src/animation/listener_helpers.dart:199:19)
#4      AnimationController._checkStatusChanged (package:flutter/src/animation/animation_controller.dart:795:7)
#5      AnimationController._tick (package:flutter/src/animation/animation_controller.dart:811:5)
#6      Ticker._tick (package:flutter/src/scheduler/ticker.dart:238:12)
...
The AnimationController notifying status listeners was: AnimationController#abf7a(⏮ 0.000; paused; for FlushbarRoute<dynamic>)

[otopba]

I have same issue

[ghost]

Bye flushbar, hi overlay_support.
https://pub.dev/packages/overlay_support

[cmdrootaccess]

Clone the code and insert this line

if(overlayEntries.isNotEmpty){
       overlayEntries.clear();
}
  assert(overlayEntries.isEmpty);

at

https://github.com/AndreHaueisen/flushbar/blob/master/lib/flushbar_route.dart#L307

[devj3ns]

@cmdrootaccess Thanks for the code snippet. It works! 😀😀

[Vinzent03]

@cmdrootaccess Would you mind to open a pull request? Although if I see the activity of the package owner I dont think it will merged right?

[cmdrootaccess]

right. i will be making further development at https://github.com/cmdrootaccess/another-flushbar

[cmdrootaccess]

please use another_flushbar: ^1.10.5 . same code just fixed this issue

[devj3ns]

Thank you for fixing the bug and publishing the fixed package @cmdrootaccess 😀

[serkanayaz]

I solved for me
Use overlay_support instead of flushbar
https://pub.dev/packages/overlay_support

[edufolly]

Same problem.

[vipinnegi90]

please use another_flushbar: ^1.10.5 . same code just fixed this issue

where is it published? I still see 1.10.4 in pub.dev.

[cmdrootaccess]

@vipinnegi90 https://pub.dev/packages/another_flushbar

[jonasN5]

please use another_flushbar: ^1.10.5 . same code just fixed this issue

Awesome!

[vipinnegi90]

@vipinnegi90 https://pub.dev/packages/another_flushbar

oh, there is another flushbar called another_flushbar .. wow >.<

[IvanPavliuk]

Any update on it?

[mellowcello77]

Which is better, overlay support or another flushbar?

[mcz9mm]

I replaced it with another_flushbar.
I had to change the import, but the other parts inherited the flushbar settings, so there were few parameter modifications.

Which is better, overlay support or another flushbar?

[fuadrivai]

please use another_flushbar: ^1.10.5 . same code just fixed this issue

thanks, it works fine.
i use same code as like before, just change dependency and borderRadius behavior.

[YawarOsman]

Bye flushbar, hi overlay_support.
https://pub.dev/packages/overlay_support

and then what should i use instread of 'onStatusChanged' ??????

[jayeshpansheriya]

you can also use https://pub.dev/packages/awesome_extensions, with some extra feature and with extension, as well as null safety support.

[Nishorecolan]

Clone the code and insert this line

if(overlayEntries.isNotEmpty){
       overlayEntries.clear();
}
  assert(overlayEntries.isEmpty);

at

https://github.com/AndreHaueisen/flushbar/blob/master/lib/flushbar_route.dart#L307

it works ....

[Hamza-ye]

I have the same issue here, I couldn't solve it, I had to move to another library called another_flushbar, I previously had an issue with unsound-null-safety!