Compiler crash: Iterables do not have same length #53453
Comments
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@burekas7 Did this happen when evaluation an explicit expression during debugging or when hovering expressions in the editor? Also was this part of a hot-reload cycle (i.e. was the code "recently" modified) ? |
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+1 , got same error when hovering on the expressions in VS CODE editor , using Dio package to debug the responses . sdk: ">=2.19.2 <4.0.0" flutter doctor • No issues found!` |
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@heshesh2010 Do you have any idea what expression was? |
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same |
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+1 here having a similar issue : this generate a debugger crash : |
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This seems to originate from a bad encoding of the arguments passed to the expression compiler - at least I can recreate the crash by creating such a bad message. I'm still not still sure the where in the tool chain this encoding is created, though. Likely related to #53382 |
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cc @jensjoha |
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@johnniwinther I think they should have correct length. However the code in |
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Yeah it reproduces quite trivially with the following test: Regression testimport 'dart:developer';
import 'package:observatory/models.dart' show InstanceKind;
import 'package:observatory/service_io.dart';
import 'package:test/test.dart';
import 'service_test_common.dart';
import 'test_helper.dart';
void testFunction() {
List<dynamic> v = <dynamic>[1, 2, '3'];
debugger();
print("v = $v");
}
var tests = <IsolateTest>[
hasStoppedAtBreakpoint,
(Isolate isolate) async {
final result = await isolate.evalFrame(0, '''v.length''');
print(result);
final instance = result as Instance;
expect(instance.valueAsString, equals('3'));
expect(instance.kind, equals(InstanceKind.int));
},
];
main(args) => runIsolateTests(args, tests, testeeConcurrent: testFunction);And if I put |
mraleph
added
the
area-vm
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In my case i was having this problem using for each to desserialize a json response that was inside a list, when a change it to a "for in" it stopped to crash |
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Does anyone know if this bug was fixed? Should I need to update the dart sdk version? |
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The issue has been fixed in the Dart repository and is available in the lastest dev release. It will be in the the next beta and stable releases. |
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@johnniwinther I see you said this 3 weeks ago, so I made sure to update to new flutter & dart versions released after your comment. (@mraleph tagging you as you authored the fix 3 weeks ago) I still experience this issue with these updates that were released sept 27th (about 2 weeks after your comment). |
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It seems you're on flutter stable meaning you don't get the dev releases of dart. |
As was mentioned above, |
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@shawnAshton next stable release means Dart 3.2. |
@shawnAshton @mraleph Please push the latest release on the stable branch. I am stuck nothing is working, my timelines are disturbed because of this error. |
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@kashiflab When the stable release with the fix will be ready for use? |
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Stable release is in the final rounds of testing and preparations for release. You could switch to Flutter beta channel if you want the fix already today. |
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I bring good news guys, today I was looking for the problem and came across this topic. |
and others
Flutter 3.13.2
environment:
sdk: '>=3.1.0 <4.0.0'
After a specific dio 'post' call I'm getting this error:
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