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There seems to be a problem with flutter's build.
I always need to perform RUN > Flutter Full Restart everytime I run the app to an emulator or device.
Otherwise, the app loads a scaffold body which my code had from 2 weeks ago when I first started coding it.
Here's the current source on pastebin
children: <Widget>[ new Opacity( opacity: loader_visible ? 1.0 : 0.0, child: new Container( padding: const EdgeInsets.all(32.0), child: new CircularProgressIndicator() ) ), while here is the resulting render tree: 
I'm guessing flutter has cached the old code and never bothered replacing it with the new one, but I am not sure how it's Hot Reload was implemented. Anyways, I don't think that it is necessary to load the old cache when we have already performed a full rebuild.
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Is there any way to undo this. Try running the code once. It'll create required meta data and download needed packages and the errors will be gone.
0" Then follow the steps: Run flutter upgrade in the terminal to upgrade Flutter Run dart migrate to run the dart migration tool. Solve all errors which the migration tool shows. Run flutter pub outdated --mode=null.
Contents in this project Clear Build Cache in Flutter Android iOS App and Rebuild Project: 1. Open your flutter project folder in Command Prompt or Terminal like i did in below screenshot. Type flutter clean command and press enter. 2. After executing flutter clean command we would see that it will delete the dart-tools folder, ...
Try running your app using the command line flutter run and then press r or R for respectively hot-reload and full-reload. Show activity on this post. Show activity on this post. There are basically 3 alternatives to cleaning everything that you could try: flutter clean will delete the /build folder.
Cache Management in Flutter. Managing the cache memory and fetching… | by Anmol Gupta | FlutterDevs C ache memory is a faster memory storage that stores the data in the memory of the phone locally. It stores the data for a fixed period of time after its data is being cleaned form the memory.
Clear command will delete the build tools and dart directories in flutter project so when we re-compile the project it will start from beginning. This command is mostly used when our project is showing debug error or running related error.
You can run flutter clean.
But that's most likely a problem with your IDE or similar, as flutter run creates a brand new apk. And hot reload push only modifications.
Try running your app using the command line flutter run and then press r or R for respectively hot-reload and full-reload.
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If in android studio Tools->Flutter->Clean
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