Because the linked website is unusable because of errors i wanted to run the project locally and got this compiler error when I tried:
flutter run -d chrome
Launching lib\main.dart on Chrome in debug mode...
Syncing files to device Chrome...
Compiler message:
../panache_ui/lib/src/screens/editor/controls/color_picker/color_slider.dart:1101:9: Error: The superclass,
'Diagnosticable', has no unnamed constructor that takes no arguments.
const GradientSliderThemeData({
^^^^^^^^^^^^^^^^^^^^^^^
Unhandled exception:
NoSuchMethodError: The getter 'name' was called on null.
Receiver: null
Tried calling: name
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:53:5)
#1 ProgramCompiler._emitSuperConstructorCallIfNeeded (package:dev_compiler/src/kernel/compiler.dart:1465:14)
#2 ProgramCompiler._emitConstructorBody (package:dev_compiler/src/kernel/compiler.dart:1419:19)
#3 ProgramCompiler._emitConstructor.<anonymous closure>.<anonymous closure>
(package:dev_compiler/src/kernel/compiler.dart:1375:19)
#4 ProgramCompiler._superDisallowed (package:dev_compiler/src/kernel/compiler.dart:3125:24)
#5 ProgramCompiler._emitConstructor.<anonymous closure> (package:dev_compiler/src/kernel/compiler.dart:1374:15)
#6 ProgramCompiler._withLetScope (package:dev_compiler/src/kernel/compiler.dart:2116:25)
#7 ProgramCompiler._withCurrentFunction (package:dev_compiler/src/kernel/compiler.dart:3115:18)
#8 ProgramCompiler._emitConstructor (package:dev_compiler/src/kernel/compiler.dart:1372:16)
#9 ProgramCompiler._defineConstructors (package:dev_compiler/src/kernel/compiler.dart:972:38)
#10 ProgramCompiler._emitClassDeclaration (package:dev_compiler/src/kernel/compiler.dart:567:19)
#11 ProgramCompiler._emitClass (package:dev_compiler/src/kernel/compiler.dart:510:21)
#12 List.forEach (dart:core-patch/growable_array.dart:282:8)
#13 ProgramCompiler._emitLibrary (package:dev_compiler/src/kernel/compiler.dart:459:23)
#14 List.forEach (dart:core-patch/growable_array.dart:282:8)
#15 ProgramCompiler.emitModule (package:dev_compiler/src/kernel/compiler.dart:345:15)
#16 JavaScriptBundler.compile (package:frontend_server/src/javascript_bundle.dart:131:33)
<asynchronous suspension>
#17 FrontendCompiler.writeJavascriptBundle (package:frontend_server/frontend_server.dart:616:20)
<asynchronous suspension>
#18 FrontendCompiler.compile (package:frontend_server/frontend_server.dart:523:15)
<asynchronous suspension>
#19 _FlutterFrontendCompiler.compile (package:flutter_frontend_server/server.dart:40:22)
#20 listenAndCompile.<anonymous closure> (package:frontend_server/frontend_server.dart:1154:26)
#21 _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#22 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#23 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#24 _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:70:11)
#25 _EventSinkWrapper.add (dart:async/stream_transformers.dart:17:11)
#26 _StringAdapterSink.add (dart:convert/string_conversion.dart:238:11)
#27 _LineSplitterSink._addLines (dart:convert/line_splitter.dart:152:13)
#28 _LineSplitterSink.addSlice (dart:convert/line_splitter.dart:127:5)
#29 StringConversionSinkMixin.add (dart:convert/string_conversion.dart:165:5)
#30 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:122:24)
#31 _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#32 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#33 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#34 _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:70:11)
#35 _EventSinkWrapper.add (dart:async/stream_transformers.dart:17:11)
#36 _StringAdapterSink.add (dart:convert/string_conversion.dart:238:11)
#37 _StringAdapterSink.addSlice (dart:convert/string_conversion.dart:243:7)
#38 _Utf8ConversionSink.addSlice (dart:convert/string_conversion.dart:314:20)
#39 _Utf8ConversionSink.add (dart:convert/string_conversion.dart:307:5)
#40 _ConverterStreamEventSink.add (dart:convert/chunked_conversion.dart:74:18)
#41 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:122:24)
#42 _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#43 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#44 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#45 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#46 _StreamController._add (dart:async/stream_controller.dart:655:7)
#47 _StreamController.add (dart:async/stream_controller.dart:597:5)
#48 _Socket._onData (dart:io-patch/socket_patch.dart:1982:41)
#49 _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#50 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#51 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#52 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#53 _StreamController._add (dart:async/stream_controller.dart:655:7)
#54 _StreamController.add (dart:async/stream_controller.dart:597:5)
#55 new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1527:33)
#56 _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1019:14)
#57 _microtaskLoop (dart:async/schedule_microtask.dart:43:21)
#58 _startMicrotaskLoop (dart:async/schedule_microtask.dart:52:5)
#59 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
#60 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:169:5)
the Dart compiler exited unexpectedly.
Syncing files to device Chrome... 13.161ms (!)
Failed to compile application.
[√] Flutter (Channel beta, v1.17.0, on Microsoft Windows [Version 10.0.17763.1098], locale de-DE)
• Flutter version 1.17.0 at C:\src\flutter
• Framework revision d3ed9ec945 (12 hours ago), 2020-04-06 14:07:34 -0700
• Engine revision c9506cb8e9
• Dart version 2.8.0 (build 2.8.0-dev.18.0 eea9717938)
[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at C:\Users\Torben\AppData\Local\Android\sdk
• Platform android-28, build-tools 28.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 45.0.1
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[√] Connected device (3 available)
• AOSP on IA Emulator • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)
• Chrome • chrome • web-javascript • Google Chrome 80.0.3987.163
• Web Server • web-server • web-javascript • Flutter Tools
• No issues found!