diff --git a/packages/flutter_tools/lib/src/flutter_plugins.dart b/packages/flutter_tools/lib/src/flutter_plugins.dart
index e9fcb2d7a4a..72f7dbb123d 100644
--- a/packages/flutter_tools/lib/src/flutter_plugins.dart
+++ b/packages/flutter_tools/lib/src/flutter_plugins.dart
@@ -1238,12 +1238,9 @@ bool hasPlugins(FlutterProject project) {
 ///  For more details, https://flutter.dev/go/federated-plugins.
 // TODO(stuartmorgan): Expand implementation to apply to all implementations,
 //  not just Dart-only, per the federated plugin spec.
-// TODO(gustl22): The flag [throwOnPluginPubspecError] is currently only used
-//  for testing dart plugins as the logic is not working correctly.
 List<PluginInterfaceResolution> resolvePlatformImplementation(
-  List<Plugin> plugins, {
-  bool throwOnPluginPubspecError = true,
-}) {
+  List<Plugin> plugins
+) {
   const Iterable<String> platformKeys = <String>[
     AndroidPlugin.kConfigKey,
     IOSPlugin.kConfigKey,
@@ -1259,47 +1256,19 @@ List<PluginInterfaceResolution> resolvePlatformImplementation(
     return '$packageName:$platform';
   }
 
-  bool hasPubspecError = false;
   for (final String platformKey in platformKeys) {
     for (final Plugin plugin in plugins) {
-      if (plugin.platforms[platformKey] == null &&
-          plugin.defaultPackagePlatforms[platformKey] == null) {
+      final String? defaultImplementation = plugin.defaultPackagePlatforms[platformKey];
+      if (plugin.platforms[platformKey] == null && defaultImplementation == null) {
         // The plugin doesn't implement this platform.
         continue;
       }
       String? implementsPackage = plugin.implementsPackage;
       if (implementsPackage == null || implementsPackage.isEmpty) {
-        final String? defaultImplementation =
-            plugin.defaultPackagePlatforms[platformKey];
         final bool hasInlineDartImplementation =
             plugin.pluginDartClassPlatforms[platformKey] != null;
         if (defaultImplementation == null && !hasInlineDartImplementation) {
-          if (throwOnPluginPubspecError) {
-            globals.printError(
-              "Plugin `${plugin.name}` doesn't implement a plugin interface, nor does "
-              'it specify an implementation in pubspec.yaml.\n\n'
-              'To set an inline implementation, use:\n'
-              'flutter:\n'
-              '  plugin:\n'
-              '    platforms:\n'
-              '      $platformKey:\n'
-              '        $kDartPluginClass: <plugin-class>\n'
-              '\n'
-              'To set a default implementation, use:\n'
-              'flutter:\n'
-              '  plugin:\n'
-              '    platforms:\n'
-              '      $platformKey:\n'
-              '        $kDefaultPackage: <plugin-implementation>\n'
-              '\n'
-              'To implement an interface, use:\n'
-              'flutter:\n'
-              '  plugin:\n'
-              '    implements: <plugin-interface>'
-              '\n',
-            );
-          }
-          hasPubspecError = true;
+          // Skip native inline PluginPlatform implementation
           continue;
         }
         final String defaultImplementationKey = getResolutionKey(platform: platformKey, packageName: plugin.name);
@@ -1348,9 +1317,6 @@ List<PluginInterfaceResolution> resolvePlatformImplementation(
       ));
     }
   }
-  if (hasPubspecError && throwOnPluginPubspecError) {
-    throwToolExit('Please resolve the pubspec errors');
-  }
 
   // Now resolve all the possible resolutions to a single option for each
   // plugin, or throw if that's not possible.
@@ -1417,21 +1383,16 @@ List<PluginInterfaceResolution> resolvePlatformImplementation(
 /// A successful run will create a new generate_main.dart file or update the existing file.
 /// Throws [ToolExit] if unable to generate the file.
 ///
-/// This method also validates each plugin's pubspec.yaml, but errors are only
-/// reported if [throwOnPluginPubspecError] is [true].
-///
 /// For more details, see https://flutter.dev/go/federated-plugins.
 Future<void> generateMainDartWithPluginRegistrant(
   FlutterProject rootProject,
   PackageConfig packageConfig,
   String currentMainUri,
-  File mainFile, {
-  bool throwOnPluginPubspecError = false,
-}) async {
+  File mainFile,
+) async {
   final List<Plugin> plugins = await findPlugins(rootProject);
   final List<PluginInterfaceResolution> resolutions = resolvePlatformImplementation(
     plugins,
-    throwOnPluginPubspecError: throwOnPluginPubspecError,
   );
   final LanguageVersion entrypointVersion = determineLanguageVersion(
     mainFile,
diff --git a/packages/flutter_tools/test/general.shard/dart_plugin_test.dart b/packages/flutter_tools/test/general.shard/dart_plugin_test.dart
index b53f2bc1f79..88ec09565c8 100644
--- a/packages/flutter_tools/test/general.shard/dart_plugin_test.dart
+++ b/packages/flutter_tools/test/general.shard/dart_plugin_test.dart
@@ -139,7 +139,6 @@ void main() {
               appDependencies: directDependencies,
             ),
           ],
-          throwOnPluginPubspecError: false,
         );
 
         expect(resolutions.length, equals(1));
@@ -833,7 +832,6 @@ void main() {
           packageConfig,
           'package:app/main.dart',
           mainFile,
-          throwOnPluginPubspecError: true,
         );
         expect(flutterProject.dartPluginRegistrant.readAsStringSync(),
           '//\n'
@@ -957,7 +955,6 @@ void main() {
             packageConfig,
             'package:app/main.dart',
             mainFile,
-            throwOnPluginPubspecError: true,
           ), throwsToolExit(message:
             'Invalid plugin specification url_launcher_macos.\n'
             'Invalid "macos" plugin specification.'
@@ -998,7 +995,6 @@ void main() {
             packageConfig,
             'package:app/main.dart',
             mainFile,
-            throwOnPluginPubspecError: true,
           ), throwsToolExit(message:
             'Invalid plugin specification url_launcher_macos.\n'
             'Cannot find the `flutter.plugin.platforms` key in the `pubspec.yaml` file. '
@@ -1011,35 +1007,6 @@ void main() {
         ProcessManager: () => FakeProcessManager.any(),
       });
 
-      testUsingContext('Does not show error messages if throwOnPluginPubspecError is false', () async {
-        final Set<String> directDependencies = <String>{
-          'url_launcher_windows',
-        };
-        resolvePlatformImplementation(<Plugin>[
-          Plugin.fromYaml(
-            'url_launcher_windows',
-            '',
-            YamlMap.wrap(<String, dynamic>{
-              'platforms': <String, dynamic>{
-                'windows': <String, dynamic>{
-                  'dartPluginClass': 'UrlLauncherPluginWindows',
-                },
-              },
-            }),
-            null,
-            <String>[],
-            fileSystem: fs,
-            appDependencies: directDependencies,
-          ),
-        ],
-          throwOnPluginPubspecError: false,
-        );
-        expect(testLogger.errorText, '');
-      }, overrides: <Type, Generator>{
-        FileSystem: () => fs,
-        ProcessManager: () => FakeProcessManager.any(),
-      });
-
       testUsingContext('Does not create new entrypoint if there are no platform resolutions', () async {
         flutterProject.isModule = false;
 
@@ -1057,7 +1024,6 @@ void main() {
           packageConfig,
           'package:app/main.dart',
           mainFile,
-          throwOnPluginPubspecError: true,
         );
         expect(flutterProject.dartPluginRegistrant.existsSync(), isFalse);
       }, overrides: <Type, Generator>{
@@ -1097,7 +1063,6 @@ void main() {
           packageConfig,
           'package:app/main.dart',
           mainFile,
-          throwOnPluginPubspecError: true,
         );
         expect(flutterProject.dartPluginRegistrant.existsSync(), isTrue);
 
@@ -1113,7 +1078,6 @@ void main() {
           packageConfig,
           'package:app/main.dart',
           mainFile,
-          throwOnPluginPubspecError: true,
         );
         expect(flutterProject.dartPluginRegistrant.existsSync(), isFalse);
       }, overrides: <Type, Generator>{