Update library

[ghost]

Epub_view | I have used this library for a few months, but today I have an error. I think the flutter_svg library has been updated. error:
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:26: Error: Type 'DiagnosticableMixin' not found.
class PictureStream with DiagnosticableMixin {
^^^^^^^^^^^^^^^^^^^
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:44: Error: Type 'DiagnosticableMixin' not found.
abstract class PictureStreamCompleter with DiagnosticableMixin {
^^^^^^^^^^^^^^^^^^^
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:7: Error: The type 'DiagnosticableMixin' can't be mixed in.
class PictureStream with DiagnosticableMixin {
^
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:16: Error: The type 'DiagnosticableMixin' can't be mixed in.
abstract class PictureStreamCompleter with DiagnosticableMixin {
^
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:167:11: Error: Superclass has no method named 'debugFillProperties'.
super.debugFillProperties(properties);
^^^^^^^^^^^^^^^^^^^
../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:171:30: Error: The method 'toStringShort' isn't defined for the class 'PictureStreamCompleter'.

• 'PictureStreamCompleter' is from 'package:flutter_svg/src/picture_stream.dart' ('../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'toStringShort'.
  ifPresent: _completer?.toStringShort(),
  ^^^^^^^^^^^^^
  ../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:266:11: Error: Superclass has no method named 'debugFillProperties'.
  super.debugFillProperties(description);

[SergeShkurko]

whats flutter doctor say?

[ghost]

Flutter (Channel dev, 1.20.0-2.0.pre, on Mac OS X 10.15.5 19F101, locale tr-TR)
• Flutter version 1.20.0-2.0.pre at /Users/furkan/Developer/flutter
• Framework revision 15a28159bc (4 days ago), 2020-06-23 04:52:58 -0700
• Engine revision 91a63d6a44
• Dart version 2.9.0 (build 2.9.0-19.0.dev 7e72c9ae7e)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at /Users/furkan/Library/Android/sdk
• Platform android-29, build-tools 29.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.5)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.5, Build version 11E608c
• CocoaPods version 1.9.1

[✓] Android Studio (version 4.0)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 46.0.2
• Dart plugin version 193.7361
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] Connected device (1 available)
• iPhone 11 Pro Max • 1B53C150-344C-4D57-995F-8C187DC07B87 • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-5 (simulator)

• No issues found!

[SergeShkurko]

You are use dev flutter channel. Can you switch It to stabile channel?

[ghost]

thank you for helping. its working