Analysis shows errors but there are none, hot reload fails #4762

crtl · 2020-08-17T13:19:55Z

Since today the my analyser in AndroidStudio started showing:
"Hot reload failed. Analysis issues".

Clicking "View Issues" shows no issues, only hints.
If I build the app it builds and it also works on hot restart but not hot reload.

Steps to Reproduce

Dont know

Version info

[√] Flutter (Channel master, 1.21.0-7.0.pre, on Microsoft Windows [Version 10.0.18363.1016], locale en-DE)
    • Flutter version 1.21.0-7.0.pre at D:\dev\flutter\sdk
    • Framework revision 7ec2d360bc (3 weeks ago), 2020-07-29 23:25:38 -0700
    • Engine revision a9910e409c
    • Dart version 2.10.0 (build 2.10.0-1.0.dev 24c7666def)

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at C:\Users\Marvin\AppData\Local\Android\sdk
    • Platform android-29, build-tools 29.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.

[√] Android Studio (version 4.0)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 48.1.2
    • Dart plugin version 193.7361
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

The text was updated successfully, but these errors were encountered:

jacob314 · 2020-08-24T17:20:19Z

To help us repro, what hints did you see? If you fix the hints, does hot reload work properly?
It could also be useful to click the refresh button in the analysis server window to make sure the output there isn't stale for some reason.

crtl · 2020-08-25T08:21:45Z

The only hint shown is the one above the Analysis tab. "Analysis issues. Hot reload failed". There is no issue anywhere in the code editing window and also no issue shown in the linter results.

stevemessick · 2020-08-31T15:03:44Z

Does this still happen after doing flutter upgrade?

no-response · 2020-09-07T15:41:26Z

Without additional information we're unfortunately not sure how to resolve this issue. We're going to close this bug for now, but please don't hesitate to comment on the bug if you have any more information for us; we're happy to reopen. Thanks for your contribution!

crtl · 2020-09-09T12:16:30Z

@stevemessick
I have upgrade flutter multiple times in the lifetime of this bug and switched branches.

Sry I have not many details because there is no reliable method to reproduce it.
Thats an issue for itself.
Where can I find logs of dart analysis or any information? Are there even any?

stevemessick · 2021-03-11T23:09:46Z

Where can I find logs of dart analysis or any information? Are there even any?

As @alexander-doroshko wrote:
To get logs: open Registry (searchable using Find Action(Cmd+Shift+A)), and add the following to the dart.server.additional.arguments property:

--instrumentation-log-file=/some/path/das.log
After that, restart the Analysis Server (a button with red errors in the Dart Analysis tool window), reproduce the issue, and attach das.log file here.

no-response · 2021-03-18T23:14:46Z

Without additional information we're unfortunately not sure how to resolve this issue. We're going to close this bug for now, but please don't hesitate to comment on the bug if you have any more information for us; we're happy to reopen. Thanks for your contribution!

Guang1234567 · 2021-04-08T04:06:41Z

@stevemessick

Analysis Server DiagnosticsDiagnostics Feedback Docs Spec
500 Oops
NoSuchMethodError: The getter 'path' was called on null. Receiver: null Tried calling: path

#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:54:5)
#1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 #24 #25 #26 #27 #28 #29 #30 #31 #32 #33 #34 #35 #36 #37 #38 #39 #40 #41 #42 #43 #44 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55 #56 ContextsPage.generateContent (package:analysis_server/src/status/diagnostics.dart:486:71)
DiagnosticPageWithNav.generateContainer. (package:analysis_server/src/status/diagnostics.dart:736:13)
DiagnosticPageWithNav.generateContainer. (package:analysis_server/src/status/diagnostics.dart:734:20)
Page.asyncDiv (package:analysis_server/src/status/pages.dart:41:15)
DiagnosticPageWithNav.generateContainer (package:analysis_server/src/status/diagnostics.dart:734:11)
DiagnosticPage.generatePage (package:analysis_server/src/status/diagnostics.dart:690:11)
Page.generate (package:analysis_server/src/status/pages.dart:63:12)
Site.handleGetRequest (package:analysis_server/src/status/pages.dart:165:37)
HttpAnalysisServer._handleGetRequest (package:analysis_server/src/server/http_server.dart:88:23)
HttpAnalysisServer._handleServer. (package:analysis_server/src/server/http_server.dart:96:15)
HttpAnalysisServer._handleServer. (package:analysis_server/src/server/http_server.dart:93:23)
_rootRunUnary (dart:async/zone.dart:1362:47)
_CustomZone.runUnary (dart:async/zone.dart:1265:19)
_CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
_BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
_BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733:19)
_StreamController._add (dart:async/stream_controller.dart:607:7)
_StreamController.add (dart:async/stream_controller.dart:554:5)
_HttpServer._handleRequest (dart:_http/http_impl.dart:2998:19)
new _HttpConnection. (dart:_http/http_impl.dart:2753:19)
_rootRunUnary (dart:async/zone.dart:1362:47)
_CustomZone.runUnary (dart:async/zone.dart:1265:19)
_CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
_BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
_BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733:19)
_StreamController._add (dart:async/stream_controller.dart:607:7)
_StreamController.add (dart:async/stream_controller.dart:554:5)
_HttpParser._headersEnd (dart:_http/http_parser.dart:394:19)
_HttpParser._doParse (dart:_http/http_parser.dart:745:15)
_HttpParser._parse (dart:_http/http_parser.dart:324:7)
_HttpParser._onData (dart:_http/http_parser.dart:858:5)
_rootRunUnary (dart:async/zone.dart:1362:47)
_CustomZone.runUnary (dart:async/zone.dart:1265:19)
_CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
_BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
_BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733:19)
_StreamController._add (dart:async/stream_controller.dart:607:7)
_StreamController.add (dart:async/stream_controller.dart:554:5)
_Socket._onData (dart:io-patch/socket_patch.dart:2144:41)
_rootRunUnary (dart:async/zone.dart:1370:13)
_CustomZone.runUnary (dart:async/zone.dart:1265:19)
_CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
_BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
_BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733:19)
_StreamController._add (dart:async/stream_controller.dart:607:7)
_StreamController.add (dart:async/stream_controller.dart:554:5)
new _RawSocket. (dart:io-patch/socket_patch.dart:1680:33)
_NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1192:14)
_microtaskLoop (dart:async/schedule_microtask.dart:40:21)
_startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
_runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:120:13)
_RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:185:5)

Guang1234567 · 2021-04-08T04:07:52Z

flutter 2.0.4 stable
macOS 10.15.7
Android studio 4.1.3

Guang1234567 · 2021-04-08T10:44:16Z

In my case,

ABC?  test_Dart_Analysis_Fail_That_Cause_Hot_Reload_Fail_Case_001 (List<ABC?>? items) {
      return item?[0];
}

Above code example will fail to hot reload, because the dart analyer has bug !!!

vixez · 2021-04-23T11:53:24Z

I also have this bug. For example I have this ListView

    return ListView.builder(
      itemCount: ratings!.length,
      shrinkWrap: true,
      primary: false,
      itemBuilder: (context, index) {
        return RatingRow(
          text: state.getLabelForDriverRating(ratings?[index]),
          rating: ratings?[index].rating,
        );
      },
    );

Because of ratings?[index] hot reload does not work, even though it is not showing any errors in the Dart Analysis tab.
Force unwrapping fixes the hot reload ratings![index].

alexander-doroshko · 2021-04-23T12:37:31Z

This will be fixed in the next Dart plugin update.

fzyzcjy · 2021-05-03T06:27:26Z

I also see this bug. It happens on my >10k lines of flutter code, so I cannot make a reproducible sample.

@alexander-doroshko Thanks sounds wonderful! I wonder when will the next update be released? Before the update, what workaround can I do?

EDIT: I have even uninstall and reinstalled the plugin, but still cannot use hot reload :(

alexander-doroshko · 2021-05-11T09:17:03Z

The problem related to the foo?[bar] syntax has been fixed and the fix is included in the latest Dart plugin versions.

There might be other problems with hot reload, they should be investigated separately. Please attach the file that fails to be hot-reloaded and provide the versions of the Dart and Flutter plugins.

Guang1234567 · 2021-05-13T06:40:15Z

@alexander-doroshko

thanks. work well in android 4.2 and newest flutter plugin.

errdeka05 · 2021-08-01T08:38:57Z

I have the same bug with dart version 2.13.4 ....

Zarainia · 2021-08-20T20:14:56Z

I also have this issue, specifically in some files in my project. However, pressing save on other files in the same project works...

Quijx · 2022-04-22T10:48:33Z

I am having this issue too. What I found to be the cause is a parameter, which is annotated, required and has type. So for example the following code will cause this bug to happen for me:

void foo({@Deprecated('foo') required int foo}) {
  print('hi');
}

alexander-doroshko · 2022-04-22T12:10:07Z

@Quijx Thanks, filed as https://youtrack.jetbrains.com/issue/WEB-55630, will fix shortly.

jacob314 added the waiting for customer response Auto-close if no response label Aug 24, 2020

no-response bot removed the waiting for customer response Auto-close if no response label Aug 25, 2020

stevemessick added the waiting for customer response Auto-close if no response label Aug 31, 2020

no-response bot closed this as completed Sep 7, 2020

no-response bot removed the waiting for customer response Auto-close if no response label Sep 9, 2020

no-response bot reopened this Sep 9, 2020

stevemessick added the waiting for customer response Auto-close if no response label Mar 11, 2021

stevemessick added this to the On Deck milestone Mar 11, 2021

no-response bot closed this as completed Mar 18, 2021

CoderDake mentioned this issue Feb 15, 2023

Add github workflow to close stale issues flutter/devtools#5249

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Analysis shows errors but there are none, hot reload fails #4762

Analysis shows errors but there are none, hot reload fails #4762

crtl commented Aug 17, 2020 •

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jacob314 commented Aug 24, 2020

crtl commented Aug 25, 2020

stevemessick commented Aug 31, 2020

no-response bot commented Sep 7, 2020

crtl commented Sep 9, 2020

stevemessick commented Mar 11, 2021

no-response bot commented Mar 18, 2021

Guang1234567 commented Apr 8, 2021 •

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vixez commented Apr 23, 2021 •

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alexander-doroshko commented Apr 23, 2021

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Guang1234567 commented May 13, 2021 •

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errdeka05 commented Aug 1, 2021

Zarainia commented Aug 20, 2021

Quijx commented Apr 22, 2022 •

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alexander-doroshko commented Apr 22, 2022

Analysis shows errors but there are none, hot reload fails #4762

Analysis shows errors but there are none, hot reload fails #4762

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crtl commented Aug 17, 2020 • edited Loading

Steps to Reproduce

Version info

jacob314 commented Aug 24, 2020

crtl commented Aug 25, 2020

stevemessick commented Aug 31, 2020

no-response bot commented Sep 7, 2020

crtl commented Sep 9, 2020

stevemessick commented Mar 11, 2021

no-response bot commented Mar 18, 2021

Guang1234567 commented Apr 8, 2021 • edited Loading

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vixez commented Apr 23, 2021 • edited Loading

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errdeka05 commented Aug 1, 2021

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crtl commented Aug 17, 2020 •

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