Compilation Error: DiagnosticsNode

[SuuSoJeat]

Compiler message:
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/svg.dart:158:18: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
        context: 'picture failed to precache',
                 ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_provider.dart:335:20: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
          context: 'while resolving a picture',
                   ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_provider.dart:337:33: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
          informationCollector: (StringBuffer information) {
                                ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_provider.dart:432:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
        informationCollector: (StringBuffer information) {
                              ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_provider.dart:495:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
        informationCollector: (StringBuffer information) {
                              ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_provider.dart:559:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
        informationCollector: (StringBuffer information) {
                              ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_stream.dart:256:16: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
      context: context,
               ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/picture_stream.dart:301:18: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
        context: 'resolving a single-frame picture stream',
                 ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/cached_network_image-0.7.0/lib/src/cached_network_image_provider.dart:46:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
        informationCollector: (StringBuffer information) {
                              ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/svg/parser_state.dart:399:35: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
            informationCollector: (StringBuffer buff) {
                                  ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/svg/parser_state.dart:408:22: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
            context: 'in _Element.clipPath',
                     ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/svg/parser_state.dart:798:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
        informationCollector: (StringBuffer buff) {
                              ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/svg/parser_state.dart:809:18: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
        context: 'in parseSvgElement',
                 ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/utilities/errors.dart:8:32: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'.
      context: 'in $methodName',
                               ^
file:///C:/Apps/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.12.4+1/lib/src/utilities/errors.dart:10:29: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable<DiagnosticsNode> Function()'.
 - 'StringBuffer' is from 'dart:core'.
 - 'Iterable' is from 'dart:core'.
 - 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Apps/flutter/packages/flutter/lib/src/foundation/diagnostics.dart').
Try changing the type of the parameter, or casting the argument to 'Iterable<DiagnosticsNode> Function()'.
      informationCollector: (StringBuffer buff) {
                            ^
Compiler failed on C:\Users\suuso\Downloads\Compressed\photos-sharing-final\lib/main.dart
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                        37.8s
Gradle task assembleDebug failed with exit code 1

[jfschmakeit]

This might be related to this issue: flutter/flutter/issues/31962

Should be fixed by updating to the latest dependencies - I'll look into bumping our dependencies. (In particular flutter_svg.)

[jfschmakeit]

@SuuSoJeat which Flutter channel are you on? Could you try switching to stable and trying it again? Did you update any other dependencies?

I haven't been able to replicate this on stable with updated packages and running the app via flutter run on the final branch.

[SuuSoJeat]

I'm sorry for not updating this issue. It was because I was using master channel. Everything is working in stable. Thank for helping.

[squillace91]

The issue is happening again. I believe upgrading flutter_svg to 0.13.1 and flutter_cached_network_image to 1.1.0 fixes the issue

[MarkOSullivan94]

@squillace91's solution fixed this issue for me. @squillace91 you should open a PR to fix this 🙂

[jrbhat-g]

             ^

file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.5.5+1/lib/src/svg/xml_parsers.dart:297:31: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable Function()'.

• 'StringBuffer' is from 'dart:core'.
• 'Iterable' is from 'dart:core'.
• 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/packages/flutter/lib/src/foundation/diagnostics.dart'). Try changing the type of the parameter, or casting the argument to 'Iterable Function()'. informationCollector: (StringBuffer buff) { ^ file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.5.5+1/lib/src/svg_parser.dart:81:29: Error: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable Function()'.
• 'StringBuffer' is from 'dart:core'.
• 'Iterable' is from 'dart:core'.
• 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/packages/flutter/lib/src/foundation/diagnostics.dart'). Try changing the type of the parameter, or casting the argument to 'Iterable Function()'. informationCollector: (StringBuffer buff) { ^ file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.5.5+1/lib/src/svg_parser.dart:92:16: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
• 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/packages/flutter/lib/src/foundation/diagnostics.dart'). Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'. context: 'in parseSvgElement', ^ file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/extended_nested_scroll_view-0.2.9/lib/src/nested_scroll_view_refresh_indicator.dart:363:24: Error: The argument type 'String' can't be assigned to the parameter type 'DiagnosticsNode'.
• 'DiagnosticsNode' is from 'package:flutter/src/foundation/diagnostics.dart' ('file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/packages/flutter/lib/src/foundation/diagnostics.dart'). Try changing the type of the parameter, or casting the argument to 'DiagnosticsNode'. context: 'when calling onRefresh', ^ file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/chewie-0.9.8/lib/src/cupertino_controls.dart:68:12: Error: Method not found: 'MouseRegion'. return MouseRegion( ^^^^^^^^^^^ file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/chewie-0.9.8/lib/src/cupertino_controls.dart:68:12: Error: The method 'MouseRegion' isn't defined for the class '_CupertinoControlsState'.
• '_CupertinoControlsState' is from 'package:chewie/src/cupertino_controls.dart' ('file:///C:/Users/flutter_windows_v1.7.8+hotfix.4-stable/flutter/.pub-cache/hosted/pub.dartlang.org/chewie-0.9.8/lib/src/cupertino_controls.dart'). Try correcting the name to the name of an existing method, or defining a method named 'MouseRegion'. return MouseRegion( ^^^^^^^^^^^

[kapil532]

Just use flutter_svg: ^0.13.1. it will solve the issue!!