I opened vs code and it said "Your Dart Code is Updated" to version 3.something; but after that I can't run my app it gives me error
Configuration 'NameOfApp (Flutter)' is missing in 'launch.json'.
What should i do
Goto Run in vscode then click on Add Configuration option. Thats all now you can run your app without any problem.
Check the indenting of the code inside lunch.json.
Sometimes if you copy/paste the launch.json file from another project or source you might have an extra column that breaks vs code debug process. At least that was my case!
Open VS Code>Run>Add Configuration.
now run your app! It must works fine.
Related
Not sure how this problem specifically occurred. I've been doing some googling trying to narrow down what exactly is going wrong as my project was fine a few days ago. When i attempt to debug my VSCODE project i'm presented with this error.
this is a picture of my launch.json file:
Also, this an error if it helps displayed in the debug console.
Things i've tried so far,
Rebooting the computer
Uninstalling and Reinstalling VSCODE as well as disabling extensions
Creating a new VSCODE Project to attempt to debug
Deleting the launch.json file and creating a new one
just delete the launch.json file and it will work again
After spending some time debugging I solved this problem by simply installing npm packages, I executed command npm i
Just make sure that your npm packages are all installed and none is failing.
Hopefully this helps you or someone with the same issue.
I've solve this problem.
Remove the launch.json file and do not replace it.
Just try to build with F5 button.
Start Debugging from within VSCode
run npm start from a separate terminal and wait for the server to start
refresh the page in your browser
My intuition is that this would create 2 instances of the server binding to the same port and cause a bunch of problems. I'm not sure why, but in my case it worked as expected and let me debug with breakpoints normally.
You don’t need to use the VS Code run button with Live Server. You just right-click the HTML file in explorer and use the menu option “Open with Live Server”.
I am trying to create a Dart console application that runs in the terminal rather than the Debug Console in Visual Studio Code.
Currently, when I press the play button:
It runs in the Debug Console. The problem with that is that the Debug Console cannot get user input from the line:
String userInput = stdin.readLineSync();
I know I can run the dart file from the terminal with:
dart C:\Applications\Dart\hello_world\bin\hello_world.dart
But I would prefer to use the play button out of convenience.
I found that you can edit the launch.json file to specify where it should run but it is not working. Even with the change shown in the picture below, it still runs in the debug console. In the picture you will notice a warning regarding how it only works with version from v2.7.1
I guess I was optimistic that the line "only supported for Dart SDKs from v2.7.1" was implying "SDKs from v2.7.1 and up.". However, it mostly likely means that version of the Dart SDK only.
Any help in achieving the goal of running a Dart file in the terminal using the Run button would be greatly appreciated.
If this is not possible, why would they take that functionality out of the newer Dart SDK's?
Your launch.json file is Ok, just check the file name. The main problem is that you use the debug button from the upper-right corner of the editor, but this button does not accept settings from launch.json.
You should use debug panel on the left side, as shown in the screenshot:
Make sure configuration's name (to the right of the green arrow) matches one from launch.json.
Coming from IDLE, I am used to be able to just left-click python files anywhere, it'll launch IDLE, and then pressing F5 just runs the script. In VSCode however, I have to open the terminal, cd into the right directory, and only then can I finally run my python script. Is there a way to change this behavior?
I was recommended to use the Code Runner extention and bound the Run Code (code-runner.run) command to my F5 key.
Then I noticed input() not being ran so I had to make sure code-runner.runInTerminal was on, but that re-started my problem from the beginning because the terminal was at the wrong working directory and then I finally found the code-runner.fileDirectoryAsCwd setting to run it from there.
I think this solution is similar to this one for the python extention, but I'm not sure if that would cause the whole wrong working directory issue again.
choose from menu file then click on auto save
I'm working with some tutorials to learn Flutter and the one that I'm taking now uses VSCode. I actually prefer it to Android Studio because it doesn't overheat my Macbook. The only frustration I've had with it so far is that there are quite a few times where autocomplete just stops working. For instance, if I wrap a Column in a widget and then start typing Container, Android Studio will pop up an autocomplete showing Container VS Code used to do this for me, but has stopped for some reason. I can still get the autocomplete list if I press Ctrl+Spacebar.
I'm using the following:
VS Code - 1.36.1
Dart Extension - 3.2.0
Flutter Extension - 3.2.0
Material Icon Theme - 3.8.0
This is the latest version for all of these.
Is there some setting or something that I need to change? I've spent the last two hours trying to work out what's going on. In searching, I did see some references to earlier versions of VS Code and the extensions causing problems, but nothing about these versions.
Go to pubspec.yaml and hit save or run get packages. It worked for me, hope it helps
There are generally two reasons for VS Code to automatically open code completion - 1) when you press a key that the extension ahs told VS Code should invoke it and 2) when VS Code thinks it would be useful (for example when you start typing on a blank line). If you're typing in a line of existing code it won't always do this.
Pressing Ctrl+Space is the correct way to open completion in the cases where it doesn't appear automatically.
That said, if you can provide more information about a specific instance, I can take a look if it's something we could/should pop completion open for. It would be best raised at https://github.com/Dart-Code/Dart-Code/issues with a screenshot and details of exactly where your cursor is (and how you got there).
dont use too many flutter extension, I also face this problem , then I realize that 3 flutter extension are installed, use only one , it works for me, try it.
I did have a derivative of this problem when I was working with VS Code and flutter and this is what I did.
This is for windows though. This is what I did ;
Go to C:\Users<your username >\AppData\Roaming\Code and delete all the files and the directory called "Code". Usually the folder AppData is hidden so you'll have to unhide it. Then restart your computer and then reopen VS Code. This I think cleared some of the unwanted cache files which kind of made things right again.
Hope it helped.
Make sure
Preferences > Editor > Intentions > Quick assist powered by the Dart
Analysis Server
is enabled (Screenshot).
If so, most likely your Dart Analysis server is crashing. Navigate to your HOME folder:
cd ~
And then below should resolve your issue:
sudo chown -R $USER .dart .flutter
Clear your cache if the issue still exists:
File > Invalidate Caches > Clear file system cache and Local History > Invalidate and Restart.
Also, Power Save Mode should be disabled:
File > Power Save Mode
Doing a flutter clean and then flutter pub upgrade worked for me. Sometimes flutter clean using the command line does not work if you have android studio then in tools go to flutter and then do flutter clean.
just do flutter clean then flutter create. and then flutter pub upgrade, and also see if your flutter SDK is latest or not.
Check to make sure Android Studio is not on low power mode
Menu>File>Low Power Save Mode
I solved in in my Macbook Pro by
Going to System Preferences > Keyboard > Shortcuts > Input Sources
Disable: Select the previous input source (^ space)
Updating VS Code dart and flutter extensions
Restarting the computer.
And voila! Ctrl + space now shows options in VS Code.
I have downloaded VS code, but the debugger doesnt work.
It says no configurations. I put a short video to show you what happens.
Thanks a lot.
short video
I don't think it has anything to do with VS Code. The error is "Cannot find runtime 'node' on PATH", so that leads me to believe you either need to download Node.js and/or add 'node' to your PATH. Run the following line from Command Prompt:
SET PATH=%PATH%;C:\Program Files\Nodejs;
It also wouldn't hurt to reboot afterward.