diff --git a/src/Avalonia.Controls/NumericUpDown/NumericUpDown.cs b/src/Avalonia.Controls/NumericUpDown/NumericUpDown.cs
index 190dab67aa..b607ced10a 100644
--- a/src/Avalonia.Controls/NumericUpDown/NumericUpDown.cs
+++ b/src/Avalonia.Controls/NumericUpDown/NumericUpDown.cs
@@ -138,7 +138,6 @@ namespace Avalonia.Controls
         private bool _clipValueToMinMax;
         private bool _isSyncingTextAndValueProperties;
         private bool _isTextChangedFromUI;
-        private CultureInfo? _cultureInfo;
         private NumberStyles _parsingNumberStyle = NumberStyles.Any;
         private NumberFormatInfo? _numberFormat;
 
diff --git a/src/Avalonia.X11/NativeDialogs/Gtk.cs b/src/Avalonia.X11/NativeDialogs/Gtk.cs
index ae04c072a5..d5eae037a9 100644
--- a/src/Avalonia.X11/NativeDialogs/Gtk.cs
+++ b/src/Avalonia.X11/NativeDialogs/Gtk.cs
@@ -258,9 +258,6 @@ namespace Avalonia.X11.NativeDialogs
 
         public static IntPtr GetForeignWindow(IntPtr xid) => gdk_x11_window_foreign_new_for_display(s_display, xid);
 
-        static object s_startGtkLock = new();
-        static Task<bool> s_startGtkTask;
-
         public static Task<bool> StartGtk()
         {
             return StartGtkCore();
diff --git a/src/Linux/Avalonia.LinuxFramebuffer/Input/EvDev/EvDevBackend.cs b/src/Linux/Avalonia.LinuxFramebuffer/Input/EvDev/EvDevBackend.cs
index 2eb10ae666..1e3c4bed48 100644
--- a/src/Linux/Avalonia.LinuxFramebuffer/Input/EvDev/EvDevBackend.cs
+++ b/src/Linux/Avalonia.LinuxFramebuffer/Input/EvDev/EvDevBackend.cs
@@ -13,7 +13,6 @@ namespace Avalonia.LinuxFramebuffer.Input.EvDev
         private readonly EvDevDeviceDescription[] _deviceDescriptions;
         private readonly List<EvDevDeviceHandler> _handlers = new List<EvDevDeviceHandler>();
         private int _epoll;
-        private bool _isQueueHandlerTriggered;
         private object _lock = new object();
         private Action<RawInputEventArgs> _onInput;
         private IInputRoot _inputRoot;
diff --git a/src/Web/Avalonia.Web.Blazor/AvaloniaView.razor.cs b/src/Web/Avalonia.Web.Blazor/AvaloniaView.razor.cs
index f3a45aac56..cda3a7597d 100644
--- a/src/Web/Avalonia.Web.Blazor/AvaloniaView.razor.cs
+++ b/src/Web/Avalonia.Web.Blazor/AvaloniaView.razor.cs
@@ -46,7 +46,6 @@ namespace Avalonia.Web.Blazor
         private GRGlInterface? _glInterface;
         private const SKColorType ColorType = SKColorType.Rgba8888;
 
-        private bool _initialised;
         private bool _useGL;
         private bool _inputElementFocused;
 
@@ -307,8 +306,6 @@ namespace Avalonia.Web.Blazor
                 
                 _interop.SetCanvasSize((int)(_canvasSize.Width * _dpi), (int)(_canvasSize.Height * _dpi));
 
-                _initialised = true;
-
                 Threading.Dispatcher.UIThread.Post(async () =>
                 {
                     _interop.RequestAnimationFrame(true);
diff --git a/src/Windows/Avalonia.Win32/Input/Imm32InputMethod.cs b/src/Windows/Avalonia.Win32/Input/Imm32InputMethod.cs
index 3adefd965f..92e2b0689e 100644
--- a/src/Windows/Avalonia.Win32/Input/Imm32InputMethod.cs
+++ b/src/Windows/Avalonia.Win32/Input/Imm32InputMethod.cs
@@ -17,7 +17,6 @@ namespace Avalonia.Win32.Input
         private bool _active;
         private bool _showCompositionWindow;
         private Imm32CaretManager _caretManager = new();
-        private bool _showCandidateList;
         private ushort _langId;
         private const int _caretMargin = 1;
         
@@ -32,7 +31,6 @@ namespace Avalonia.Win32.Input
             _active = false;
             _langId = PRIMARYLANGID(LGID(HKL));
             _showCompositionWindow = true;
-            _showCandidateList = true;
 
             IsComposing = false;
         }
@@ -50,7 +48,6 @@ namespace Avalonia.Win32.Input
             _active = false;
             _langId = 0;
             _showCompositionWindow = false;
-            _showCandidateList = false;
 
             IsComposing = false;
         }
diff --git a/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs b/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
index 382306ac83..9cce169744 100644
--- a/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
+++ b/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
@@ -230,7 +230,7 @@ namespace Avalonia.IntegrationTests.Appium
                         PixelRect.Parse(_session.FindElementByAccessibilityId("ScreenRect").Text),
                         double.Parse(_session.FindElementByAccessibilityId("Scaling").Text));
                 }
-                catch (OpenQA.Selenium.NoSuchElementException e) when (retry++ < 3)
+                catch (OpenQA.Selenium.NoSuchElementException) when (retry++ < 3)
                 {
                     // MacOS sometimes seems to need a bit of time to get itself back in order after switching out
                     // of fullscreen.