diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo.Abp.AspNetCore.Mvc.UI.Bundling.csproj b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo.Abp.AspNetCore.Mvc.UI.Bundling.csproj
index 535a907335..6e5cf50d57 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo.Abp.AspNetCore.Mvc.UI.Bundling.csproj
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo.Abp.AspNetCore.Mvc.UI.Bundling.csproj
@@ -5,6 +5,8 @@
 
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>Nullable</WarningsAsErrors>
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
     <AssemblyName>Volo.Abp.AspNetCore.Mvc.UI.Bundling</AssemblyName>
     <PackageId>Volo.Abp.AspNetCore.Mvc.UI.Bundling</PackageId>
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/BundlerBase.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/BundlerBase.cs
index 285f8ea691..4b0efe54ab 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/BundlerBase.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/BundlerBase.cs
@@ -146,7 +146,7 @@ public abstract class BundlerBase : IBundler, ITransientDependency
         return false;
     }
 
-    protected virtual IFileInfo GetMinFileInfoOrNull(string file)
+    protected virtual IFileInfo? GetMinFileInfoOrNull(string file)
     {
         foreach (var suffix in _minFileSuffixes)
         {
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/Styles/CssRelativePath.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/Styles/CssRelativePath.cs
index 93332bf575..c41f0ca4a4 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/Styles/CssRelativePath.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/Styles/CssRelativePath.cs
@@ -20,7 +20,7 @@ internal static class CssRelativePath
             return cssFileContents;
         }
 
-        var cssDirectoryPath = Path.GetDirectoryName(absoluteInputFilePath);
+        var cssDirectoryPath = Path.GetDirectoryName(absoluteInputFilePath)!;
 
         foreach (Match match in matches)
         {
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleItemTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleItemTagHelper.cs
index f069f20190..1240dbef11 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleItemTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleItemTagHelper.cs
@@ -10,12 +10,12 @@ public abstract class AbpBundleItemTagHelper<TTagHelper, TTagHelperService> : Ab
     /// <summary>
     /// A file path.
     /// </summary>
-    public string Src { get; set; }
+    public string? Src { get; set; }
 
     /// <summary>
     /// A bundle contributor type.
     /// </summary>
-    public Type Type { get; set; }
+    public Type? Type { get; set; }
 
     protected AbpBundleItemTagHelper(TTagHelperService service)
         : base(service)
@@ -26,7 +26,7 @@ public abstract class AbpBundleItemTagHelper<TTagHelper, TTagHelperService> : Ab
     {
         if (Type != null)
         {
-            return Type.FullName;
+            return Type.FullName!;
         }
 
         if (Src != null)
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleTagHelper.cs
index d5fce59e4a..ca557436e9 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpBundleTagHelper.cs
@@ -6,7 +6,7 @@ public abstract class AbpBundleTagHelper<TTagHelper, TService> : AbpTagHelper<TT
     where TTagHelper : AbpTagHelper<TTagHelper, TService>
     where TService : class, IAbpTagHelperService<TTagHelper>
 {
-    public string Name { get; set; }
+    public string? Name { get; set; }
 
     protected AbpBundleTagHelper(TService service)
         : base(service)
@@ -14,7 +14,7 @@ public abstract class AbpBundleTagHelper<TTagHelper, TService> : AbpTagHelper<TT
 
     }
 
-    public virtual string GetNameOrNull()
+    public virtual string? GetNameOrNull()
     {
         return Name;
     }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperResourceService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperResourceService.cs
index 04a8761534..a247022674 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperResourceService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperResourceService.cs
@@ -39,7 +39,7 @@ public abstract class AbpTagHelperResourceService : ITransientDependency
         [NotNull] TagHelperContext context,
         [NotNull] TagHelperOutput output,
         [NotNull] List<BundleTagHelperItem> bundleItems,
-        [CanBeNull] string bundleName = null)
+        string? bundleName = null)
     {
         Check.NotNull(viewContext, nameof(viewContext));
         Check.NotNull(context, nameof(context));
@@ -55,9 +55,9 @@ public abstract class AbpTagHelperResourceService : ITransientDependency
             bundleName = GenerateBundleName(bundleItems);
         }
 
-        CreateBundle(bundleName, bundleItems);
+        CreateBundle(bundleName!, bundleItems);
 
-        var bundleFiles = await GetBundleFilesAsync(bundleName);
+        var bundleFiles = await GetBundleFilesAsync(bundleName!);
 
         output.Content.Clear();
 
@@ -68,7 +68,7 @@ public abstract class AbpTagHelperResourceService : ITransientDependency
             if (file == null || !file.Exists)
             {
                 Logger.LogError($"Could not find the bundle file '{bundleFile}' for the bundle '{bundleName}'!");
-                AddErrorScript(viewContext, tagHelper, context, output, bundleFile, bundleName);
+                AddErrorScript(viewContext, tagHelper, context, output, bundleFile, bundleName!);
                 continue;
             }
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/BundleTagHelperContributorTypeItem.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/BundleTagHelperContributorTypeItem.cs
index 5fac826e8b..bab02a9f97 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/BundleTagHelperContributorTypeItem.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/BundleTagHelperContributorTypeItem.cs
@@ -6,7 +6,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bundling.TagHelpers;
 public class BundleTagHelperContributorTypeItem : BundleTagHelperItem
 {
     [NotNull]
-    public Type Type { get; }
+    public Type Type { get; } = default!;
 
     public BundleTagHelperContributorTypeItem([NotNull] Type type)
     {
@@ -15,7 +15,7 @@ public class BundleTagHelperContributorTypeItem : BundleTagHelperItem
 
     public override string ToString()
     {
-        return Type.FullName;
+        return Type.FullName!;
     }
 
     public override void AddToConfiguration(BundleConfiguration configuration)
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/IBundleTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/IBundleTagHelper.cs
index 233298c16c..74d936964e 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/IBundleTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/IBundleTagHelper.cs
@@ -2,5 +2,5 @@
 
 public interface IBundleTagHelper
 {
-    string GetNameOrNull();
+    string? GetNameOrNull();
 }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/ScriptNonceTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/ScriptNonceTagHelper.cs
index 6c29c81073..08f99e3c0b 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/ScriptNonceTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/ScriptNonceTagHelper.cs
@@ -11,7 +11,7 @@ public class ScriptNonceTagHelper : AbpTagHelper
 {
     [HtmlAttributeNotBound]
     [ViewContext]
-    public ViewContext ViewContext { get; set; }
+    public ViewContext ViewContext { get; set; } = default!;
     public override void Process(TagHelperContext context, TagHelperOutput output)
     {
         if (ViewContext.HttpContext.Items.TryGetValue(AbpAspNetCoreConsts.ScriptNonceKey, out var nonce) && nonce is string nonceString && !string.IsNullOrEmpty(nonceString))