'Flutter Hot Reload and Hot Restart do not always work

For now one week, sometimes when I HotReload my changes are not applied (the log says it's been HotReload but in fact, they are not) and the same when I HotRestart so I'm forced to stop and re-run the app (and sometimes to delete the build)!

    Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, v1.15.17, on Microsoft Windows [version 10.0.17763.1098], locale fr-FR)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[√] Chrome - develop for the web
[√] Android Studio (version 3.6)
[√] Connected device (3 available)

• No issues found!

I run my app on Android Emulator 9 Pie.

EDIT: I tried to invalidate the cache of AndroidStudio and restart, and also tried on another emulator but it didn't solve the issue...

Solution 1:^[1]

My problem was a bad import

import 'file:///C:/Users/plest/StudioProjects/the_spot/lib/pages/home_page/Map/map.dart' ;

instead of

import 'package:the_spot/pages/home_page/Map/map.dart' ;

I don't know why the import changed by itself...

Solution 2:^[2]

try changing your channel, for example run flutter channel master . worked for me

Solution 3:^[3]

Solution is always depends the problem. Many reasons may cause the issue.

Method 1 : Re-install Flutter Plugin

This is the best solutions for your problem. First of all, uninstall the flutter.
File -> Settings -> Plugins (on MacOs: Preference -> Plugins)
Select Flutter. Uninstall (You might restart the IDE)
Now re-install the flutter.
File -> Settings -> Plugins (on MacOs: Preference -> Plugins)
Select ‘Browse repositories’.
Now search for ‘Flutter’. Select ‘Flutter’.
Install.

Method 2 : The android project should be on running stage on android studio or your IDE

Method 3 : Make sure your application is open and not closed by you after running.

The application should be active, phone is not locked and light is on. Hot Reload will not work if you close the application.

Solution 4:^[4]

uninstall & after re-install flutter plugin from setting will make this right

Solution 5:^[5]

After installation. I rebooted my mac and suddenly it was way faster!

Solution 6:^[6]

It could be a proxy problem. Please try to close it.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Milvintsiss
Solution 2	SO 80
Solution 3	Paresh Mangukiya
Solution 4	Murshid Ahamed
Solution 5	tbrodbeck
Solution 6	Edison xu

'Flutter Hot Reload and Hot Restart do not always work

Solution 1:[1]

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Solution 3:[3]

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