6.0.0.0+pre2

CHANGELOG.md

@@ -1,3 +1,5 @@
+[6.0.0+pre2] 
+* fixing asssert in CommandBuilder
 [6.0.0+pre1] 
 * breaking changes: Command.debugName -> Command.name, ErrorReaction.defaultHandler -> ErrorReaction.defaulErrorFilter
 * unless an error filter returns none or throwException all errors will be published on the `resultsProperty` including

lib/command_builder.dart

@@ -41,12 +41,14 @@ class CommandBuilder<TParam, TResult> extends StatelessWidget {
               whileExecuting?.call(context, lastData, paramData) ??
               const SizedBox(),
           onError: (lastData, error, paramData) {
+            if (onError == null) {
+              return const SizedBox();
+            }
             assert(
                 result.errorReaction?.shouldCallLocalHandler == true,
                 'This CommandBuilder received an error from Command ${command.name} '
                 'but the errorReaction indidates that the error should not be handled locally. ');
-            return onError?.call(context, lastData, error, paramData) ??
-                const SizedBox();
+            return onError!.call(context, lastData, error, paramData);
           },
         );
       },

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_command
 description: flutter_command is a way to manage your state based on `ValueListenable` and the `Command` design pattern.
-version: 6.0.0+pre1
+version: 6.0.0+pre2
 homepage: https://github.com/escamoteur/flutter_command
 
 environment: