WARNING in ./node_modules/bootstrap/dist/css/bootstrap.min.css (./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!./node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-loader/dist/cjs.js!./node_modules/bootstrap/dist/css/bootstrap.min.css) Module Warning (from ./node_modules/postcss-loader/dist/cjs.js): Warning…Execution failed for task ':app:lintVitalRelease'.1: Go to your app-level build.grade.
2:Scroll down to “android{ “ paste this code carefully(not disturbing any other brakets.)
lintOptions {…'[ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)'Solve the problem by upgrading all firebase dependencies to the latest version using flutter pub outdated and flutter pub upgrade firebase_....
I encountered this issue after adding the firebase_messaging plugin…
How to fix Unable to establish connection on channel in Flutter
You’ve upgraded Flutter but not the packages. In the terminal enter
flutter pub outdated
Then upgrade the outdated packages one by one like this:
flutter upgrade outdated_package
After you’re finished:
flutter clean
and
flutter pub get
Your problem should now be solved.
