diff --git a/lib/data/model/app/update.dart b/lib/data/model/app/update.dart
index d6f61469..6cc4882a 100644
--- a/lib/data/model/app/update.dart
+++ b/lib/data/model/app/update.dart
@@ -133,9 +133,7 @@ class AppUpdatePlatformSpecific<T> {
         return linux;
 
       /// Not implemented yet.
-      case OS.web:
-      case OS.fuchsia:
-      case OS.unknown:
+      case OS.web || OS.fuchsia || OS.unknown:
         return null;
     }
   }
diff --git a/lib/data/provider/server.dart b/lib/data/provider/server.dart
index 70d80d0f..614646e3 100644
--- a/lib/data/provider/server.dart
+++ b/lib/data/provider/server.dart
@@ -325,7 +325,7 @@ class ServerProvider extends ChangeNotifier {
           Loggers.app.warning('Write script to ${spi.name} failed', e);
           return;
         } finally {
-          await file.delete();
+          if (await file.exists()) await file.delete();
         }
       }
     }
diff --git a/lib/main.dart b/lib/main.dart
index 27c9acff..57949b48 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -62,7 +62,7 @@ void _runInZone(void Function() body) {
     body,
     (obj, trace) {
       Analysis.recordException(trace);
-      Loggers.root.warning(obj, trace);
+      Loggers.root.warning(obj);
     },
     zoneSpecification: zoneSpec,
   );
diff --git a/pubspec.yaml b/pubspec.yaml
index ae8e3f09..dc66222f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.17.0 <3.0.0"
+  sdk: ">=3.0.0"
 
 dependencies:
   archive: ^3.3.8