Flutter fresh installation flutter run stuck - flutter

Question

I am new to flutter i have fresh installtion.
All as in docs.
As after fresh installation i was fine worked but when i want to work on another day flutter run i stuck.... I do not know why. I only make boilerplate app. I xcode when i build app is opening in simulator but stating as flutter run not working. I even try to wait 20 min with this flutter run but still stuck
flutter doctor -v
[✓] Flutter (Channel master, v1.6.4-pre.14, on Mac OS X 10.14.5 18F132, locale
pl-PL)
• Flutter version 1.6.4-pre.14 at /Users/db/Desktop/Mobile/flutter
• Framework revision 81c38b22cb (32 hours ago), 2019-05-24 22:51:02 -0400
• Engine revision 8dc3a4cde2
• Dart version 2.3.2 (build 2.3.2-dev.0.0 e3edfd36b2)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/db/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling
support)
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android
Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build
1.8.0_152-release-1343-b01)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 10.2.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.2.1, Build version 10E1001
• CocoaPods version 1.7.0
[✓] iOS tools - develop for iOS devices
• ios-deploy 1.9.4
[✓] Android Studio (version 3.4)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 35.3.1
• Dart plugin version 183.6270
• Java version OpenJDK Runtime Environment (build
1.8.0_152-release-1343-b01)
[✓] Connected device (1 available)
• iPhone 8 • F35EFD3E-C637-427A-8405-30EDF202939A • ios •
com.apple.CoreSimulator.SimRuntime.iOS-12-2 (simulator)
• No issues found!
flutter run -v stuck at this stage.
+file:///Users/db/Desktop/Mobile/flutter/packages/flutter/lib/widgets.d
art
[ ] -> +file:///Users/db/Desktop/Flutter/iamsmart/lib/main.dart
[ ] -> 35191e22-84d6-4fab-abef-178ae9e4c665 build/app.dill 0
[ +319 ms] Building bundle
[ ] Writing asset files to build/flutter_assets
[ +55 ms] Wrote build/flutter_assets
[ +12 ms] Using legacy Xcode build system.
[ +27 ms] executing: [/Users/db/Desktop/Flutter/iamsmart/ios/]
/usr/bin/xcodebuild -list

Answer 1

Run this command
flutter clean
And then again
flutter run

Answer 2

Try to upgrade your flutter version to v 1.7.8 by running this
command this needs internet connection
flutter upgrade
Try this command
flutter clean
Change your flutter channel to stable
flutter channel stable
Check your internet connection because sometimes it prevents me from
running my app

Answer 3

Try to switch your flutter channel master to stable channel. After switching the channels you should call flutter upgrade to download the Flutter SDK and dependent packages.
Do this steps in the terminal
flutter channel stable
flutter upgrade
try to run your code after this steps.

Answer 4

Update to 1.9.1-hotfix4 fixed the problem

Answer 5

Your flutter doctor isn't showing any error as you had shared the commands.I think to share the run command terminal so that we can find out the stack of flowing of commands.
If you are getting error to build flutter project then you should update the Android Studio or VS Code Editor.
You can refer here:
Android studio-https://developer.android.com/studio
VS Code-https://code.visualstudio.com/Download
If you are able to create flutter project but doesn't getting run command then you need to update flutter and dart.
You can refer here:
Flutter-https://flutter.dev/docs/development/tools/sdk/releases
Dart-https://dart.dev/get-dart
If still you are suffering from error then you need to share some more Pics.

Answer 6

Probably something's gone wrong after you changed some files in of flutter ide. Also it does after updates crashed.
So the thing you should do is firstly backup your projects if it indeed. After backup remove the ide and be sure uninstalling complate succesful. Restart your computer and install all decencies again. Because sometimes upgrading does not works well to get good result.
P.S : Dont forget using flutter doctor for checking if any problem comes out.