When I try to open the flutter project of my developer, I get hundreds of errors, that he does not find multiple packages for instance. Packages that consist with the name of my app, so they are probably custom made. He says I should have everything and that it gives errors because my flutter version is newer than the one that the project recognises in vsc. Is this correct? And if so, how can I get these packages?
''''
Target of URI doesn't exist: 'package:fimber/fimber_base.dart'.
Try creating the file referenced by the URI, or Try using a URI for a file that does
exist.dart(uri_does_not_exist)
run flutter clean and then flutter pub get , As far as I assume, related packages are not in the app, so you have to get them via pub get.
Try to write where the Dart file is located in the import section, in a case of sth like this.
Target of URI doesn't exist: 'package:fimber/fimber_base.dart'.
Try creating the file referenced by the URI, or try using a URI for a file that does:
exist.dart(uri_does_not_exist)
Try to delete the import URI to this fimber_base.dart or, if you are using the Android Studio as your IDE, press alt+enter, it should give the library to import.
Related
Flutter seems to have a very strict/rigid structure for plugins with example folder and all contents inside that folder.
I want to provide multiple examples with my plugin. Something like examples folder and then examples/demo1 and examples/demo2 as two different app examples.
I tried doing this but flutter run or pub get command breaks with this change. it's gets stuck with below error which wasn't thrown with exact same code in previous structure before change. Also my app actually follow embedding v2 code so this error is completely false too.
The plugin `<MY PLUGIN>` requires your app to be migrated to the Android embedding v2. Follow the steps on
https://flutter.dev/go/android-project-migration and re-run this command.
Somehow is it expecting that there should be only one example and that too with example folder only ?
Can someone help, and if possible point me to a plugin project where it's using multiple examples ?
After trying multiple ways to deal with the situation,
I ended up with a good enough solution.
I moved entire flutter repo inside an sdk directory, and then Introduced a samples folder at root level which can contain multiple sample applications.
sdk itself has a default sample app under example folder which I kept so sdk can ship with one example project.
Final structure look like below,
- Root
- sdk
- Flutter plugin project (like android/example/ios/lib directory etc.)
- samples
- sampleOne
- sampleTwo
I then mentioned relative path to sdk for sampleOne or sampleTwo inside their pubspec.yaml like path: ../../sdk/
When I want to open sampleOne in AndroidStudio, I import sampleOne directory and it works like charm. Make sure you don't import entire samples directory or sampleOne/Android.
For any regular Flutter commands for plugin, I run them inside sdk directory and everything works fine as expected. So I would run publish or pub get inside root/sdk directory
I am creating a desktop application from an existing app.
The command given in documentation is :
flutter create .
Running this command in the root of the project directory I am getting this error
"MyApp" is not a valid Dart package name.
Note: MyApp is name of my project
Flutter only allows project names that are lower case letters and may contain an underscore or a number. This is actually a convention from dart packages. Check here for the prescribed convention. It is likely that your folder name is used by flutter as its project name. You can try to overcome this by changing the folder name. But please do keep a backup before doing flutter create on an existing project. For more details on possible options check this post as well.
write app name in lowercase
flutter create myapp
I have a Flutter project that currently builds for iOS and Android. I created the project around Flutter v1.9 or so. Since creating the project, I have added flavor support to my project (dev, prod) via the guide found here
However, after having done this, it doesn't seem like I am able to add web support to my project. Following Flutter's official instructions to enable web for a pre-existing project, I try to run flutter create . in the root directory of the project. When I do this I get the output:
The Xcode project defines schemes: dev, prod You must specify a --flavor option to select one of the available schemes.
So I try to run: flutter create . --flavor=dev and get Multiple output directories specified. Try moving --flavor=dev to be immediately following create
Soooo, I try: flutter create --flavor=dev . and get Could not find an option named "flavor".
Does anyone know how I can initialize web for this project? Thanks.
You need to do the following:
Goto root folder and rename manually ios folder temporarily to something like ios1
Goto terminal and make sure you are standing in root, then run this line:
flutter create --platforms=web .
Return to project folder and rename back manually ios1 to ios
Done
Inside the Flutter project directory, I created a package with the following command :
flutter create --template=package emoji_support
After it completes creating the package and completes flutter get.
But..
Files inisde package's /test directory can't find files inside package's /lib directory :
import 'package:flutter_test/flutter_test.dart'; is resolved ✅
But...
import 'package:emoji_support/emoji_support.dart'; is not resolved ❌
File structure
What error am I making here?
I created a package inside my project flutter_example_file_picker with flutter create --template=package emoji_support
Then in the pubspec.yaml of the project (not the one inside the plugin) flutter_example_file_picker > pubspec.yaml I added to the dependenceis the package
dependencies:
flutter:
sdk: flutter
emoji_support:
path: ./emoji_support
and the problem resolved, I could run the test with no problem, also tried with a relative path without adding it to the dependencies and worked too
UPDATE
I think I undestand how to fix it without adding it to the pubspec, when creating a plugin inside a project, the flutter plugin of AndroidStudio (or VS) is still working in the main route (check the terminal dir and it will be C:/.../Workspace_Android\hundreddaysofflutter> so it doesnt detect the inner plugin) and doesn't update to detect the new folder. Even if it's red and says it cannot detect the URI.
You can ignore it and try to run the test and see if it detects the inner dart_tool with package_config.json, then it will run succesfully and the problem will dissapear. The second option is to move to the folder where the plugin is (in the terminal cd my_plugin_name_folder or just file open and open the plugin).
Run flutter get pub (it does it automatically when creting the first time a project but sometimes when you create one inside another it doesnt do it) to run for the first time the package and create the package_config.json inside dart_tool (the dart_tool of the plugin), at the end of the file you can see the name and rootUri of the package, now you can use it in your test nad it should detect it correctly. Sometimes it's generated but it seems it doesn't update correctly and the IDE doesn't know even if it's there.
This is just a problem that occurs , when you are adding new sub_directories in vsCode.
just a simple exist and re-open will fix the issue.
tell me if that fix it.
I have a Flutter app and a package folder loaded in VS code at the same time within a workspace. What entry do I need to make to my app's pubspec.yaml file to ensure that changes I've made to the package are compiled and included whenever I hot reload or restart the app? What would be an alternate strategy if this is not possible?
If your pubspec.yaml refers to your package with a path then I would expect this to happen automatically. If not, I would consider it a bug. Please file an issue at https://github.com/Dart-Code/Dart-Code and include a log file generated by running the Dart: Capture Logs command and as much info about your project layout as possible (a clonable repo to repro would be perfect).