Compilation error

[TyrusLabs]

Tirumalas-MacBook-Pro:pustalk Tyrus$ flutter build apk
You are building a fat APK that includes binaries for android-arm, android-arm64, android-x64.
If you are deploying the app to the Play Store, it's recommended to use app bundles or split the APK to reduce the APK size.
To generate an app bundle, run:
flutter build appbundle --target-platform android-arm,android-arm64,android-x64
Learn more on: https://developer.android.com/guide/app-bundle
To split the APKs per ABI, run:
flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi
Learn more on: https://developer.android.com/studio/build/configure-apk-splits#configure-abi-split

Compiler message:
../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:6:8: Error: Not found: 'dart:html'
import 'dart:html';
^
../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:34:18: Error: 'HttpRequest' isn't a type.
final _xhrs = {};
^^^^^^^^^^^
../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:58:34: Error: 'Blob' isn't a type.
var blob = xhr.response as Blob ?? Blob([]);
^^^^
../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:46:15: Error: The method 'HttpRequest' isn't defined for the class 'BrowserClient'.

• 'BrowserClient' is from 'package:http/src/browser_client.dart' ('../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'HttpRequest'.
  var xhr = HttpRequest();
  ^^^^^^^^^^^
  ../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:58:42: Error: The method 'Blob' isn't defined for the class 'BrowserClient'.
• 'BrowserClient' is from 'package:http/src/browser_client.dart' ('../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'Blob'.
  var blob = xhr.response as Blob ?? Blob([]);
  ^^^^
  ../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart:59:20: Error: The method 'FileReader' isn't defined for the class 'BrowserClient'.
• 'BrowserClient' is from 'package:http/src/browser_client.dart' ('../../development/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.12.1/lib/src/browser_client.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'FileReader'.
  var reader = FileReader();
  ^^^^^^^^^^
  Unhandled exception:
  FileSystemException(uri=org-dartlang-untranslatable-uri:dart%3Ahtml; message=StandardFileSystem only supports file:* and data:* URIs)
  #0 StandardFileSystem.entityForUri (package:front_end/src/api_prototype/standard_file_system.dart:33:7)
  Remove dart:mirror usage from package:http #1 asFileUri (package:vm/kernel_front_end.dart:567:37)

#2 writeDepfile (package:vm/kernel_front_end.dart:760:21) #3 FrontendCompiler.compile (package:frontend_server/frontend_server.dart:539:15) #4 _FlutterFrontendCompiler.compile (package:flutter_frontend_server/server.dart:40:22) #5 starter (package:flutter_frontend_server/server.dart:178:27) #6 main (file:///b/s/w/ir/cache/builder/src/flutter/flutter_frontend_server/bin/starter.dart:8:30) #7 _startIsolate. (dart:isolate-patch/isolate_patch.dart:299:32) #8 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

• Where:
  Script '/Users/Tyrus/audiopustak/development/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 882

• What went wrong:
  Execution failed for task ':app:compileFlutterBuildRelease'.

Process 'command '/Users/Tyrus/audiopustak/development/flutter/bin/flutter'' finished with non-zero exit value 1

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 10s
Running Gradle task 'assembleRelease'...
Running Gradle task 'assembleRelease'... Done 11.2s
Gradle task assembleRelease failed with exit code 1
Tirumalas-MacBook-Pro:pustalk Tyrus$

[TyrusLabs]

Code was working fine and I had to reboot the laptop.

[natebosch]

You cannot import package:http/browser_client.dart on platforms other than the web. Use the cross-platform package:http/http.dart instead.