Reputation: 785
When the code is not running, I can add breakpoint (round red circle), but as soon as it goes into debug mode, it turns into unverified breakpoint (grey hollow circle) and doesn't work at all. However, the same project works well on other systems.
I've no idea what the problem is or what the solution would be.
I've tried reinstalling flutter SDK numerous times, and have gone through a lot of links on SOF and GitHub regarding this, but none has been helpful enough.
Environment - VS Code, Flutter version: 1.17.2
Flutter doctor -
[✓] Flutter (Channel stable, v1.17.2, on Mac OS X 10.15.3 19D76, locale en-GB)
[✗] Android toolchain - develop for Android devices
✗ Unable to locate Android SDK.
Install Android Studio from: https://developer.android.com/studio/index.html
On first launch it will assist you in installing the Android SDK components.
(or visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions).
If the Android SDK has been installed to a custom location, set ANDROID_SDK_ROOT to that location.
You may also want to add it to your PATH environment variable.
[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
[!] Android Studio (not installed)
[✓] VS Code (version 1.45.1)
[✓] Connected device (1 available)
! Doctor found issues in 2 categories.
My launch.json File -
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Flutter: Run all Tests",
"type": "dart",
"request": "launch",
"program": "./test/"
},
{
"name": "Dart: Run all Tests",
"type": "dart",
"request": "launch",
"program": "./test/"
},
{
"name": "Dart",
"type": "dart",
"request": "launch",
"program": "bin/main.dart"
},
{
"name": "Dart: Attach to Process",
"type": "dart",
"request": "attach"
},
{
"name": "Flutter",
"request": "launch",
"type": "dart"
}
]
}
Also, If you know any good alternatives to VSCode and Android Studio for Flutter, please share.
Upvotes: 17
Views: 29017
Reputation: 329
I use vscode, most of the time I connect to my linux pc from my windows laptop with the remote extension through ssh.
First I noticed this problem with the remote session, then I noticed it happened on the vscode installed on the linux pc too. I have removed all the folders I could find in my home directory related to vscode, flutter and vscode-server. That fixed it there with linux vscode app.
But the remote session still didn't work. Then I did the same thing on my laptop, removed every config directory related to vscode and flutter. I think the culprit here is vscode. It has a few config related directories. If I remember correctly one "." folder in the user directory and one somewhere in AppData. After that I reconfigured vscode(sync, extensions) and that solved it.
TLDR: remove vs code config/cache folders
Upvotes: 0
Reputation: 109
For others facing this error on Linux My setup: Kubuntu 23.10, Flutter 3.16.0, VSC 1.84.2
The issue most commonly has grounds in VSC installation path. If you installed VSC by snap - it most likely will not work.
code
installed by snap
snap list
- look for code
(if you have many apps installed you can try snap list | grep code
)snap remove code
rm -r ~/.config/Code
sudo apt install code
sudo apt install google-chrome-stable
Hope it helps, it took me 4h to find any working solution.
Upvotes: 1
Reputation: 478
Try to rebuild your launch.json file. Remove the old file from the .vscode directory in vscode, then goto Run and Debug window and create a new launch file.
Upvotes: 1
Reputation: 141
I had a similar problem. My platform is Ubuntu 20.04. I was setting the breakpoint in vscode expecting the vscode debugger to work immediately, but no. After an hour of googling, I hit the Flutter docs on the DevTools page.
To resolve :
Upvotes: 0
Reputation: 21
In my case, the parents folder contains special character (#):
.../#Projects/my_project/
Remove the # and the debug goes well:
.../Projects/my_project/
Upvotes: 2
Reputation: 1218
I had a similar problem. I solved by completely uninstalling and reinstalling Vscode + remove the data. See here
Upvotes: 1
Reputation: 732
For flutter-web I had to change back to <base href="/">
within the web/index.html
. A custom href
lead to a none-debuggable project.
Upvotes: 2
Reputation: 788
For anybody running into this problem while trying to debug external libraries or sdk code: Make sure you checked "Dart: Debug External Libraries" and "Dart: Debug Sdk Libraries" under Settings > Extensions > Dart & Flutter as described here.
You can also add the following to your settings.json
"dart.debugExternalLibraries": true,
"dart.debugSdkLibraries": true,
Upvotes: 10
Reputation: 455
I faced the same problem with debug in certain dart files, but the other files I could.
Then I realized that it happened when I call another file and this trick would help:
Instead of typing:
import '../form/productdetail.dart';
I replaced with:
import 'package:myapp/form/productdetail.dart';
and it helped.
Upvotes: -1
Reputation: 236
i came from mac and always use fn + f5, on windows that means start withouth debugggin, that was my mistake.
Upvotes: 11
Reputation: 363
Have faced the same issue, resolved by stopping the current active session and click on RUN and select START DEBUGGING. This worked for me.
Upvotes: 0
Reputation: 819
Navigate to the Run Tab and select Dart & Flutter from the drop down menu, finally hit the play button.
Upvotes: 5
Reputation: 143
"version": "0.2.0",
"configurations": [
{
"name": "Flutter",
"request": "launch",
"type": "dart",
"flutterMode": "debug"
}
]
}
This is my launch.json file ... changing "flutterMode" from profile to debug solved the issue ... if you dont have this line adding it could help.
Upvotes: 10
Reputation: 91
Clicking Run on the top menu in VS code and selecting 'Enable all breakpoints' worked for me. Though you have to place your breakpoint first.
You can also try placing your breakpoint and save your code, then leave the emulator running and close and restart your vs code IDE and run the app with debugging.
Upvotes: 6
Reputation: 347
I was also facing the same issue, I am looking for the exact reason but removing the launch.json file worked for me.
Upvotes: 0
Reputation: 633
Your main.dart file's path is not specified right. so in this block
"name": "Dart",
"type": "dart",
"request": "launch",
"program": "bin/main.dart"
please use
"program": "lib/main.dart"
Upvotes: 0