diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.Theming/Volo.Abp.AspNetCore.Components.WebAssembly.Theming.csproj b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.Theming/Volo.Abp.AspNetCore.Components.WebAssembly.Theming.csproj
index e310f4a2e2..06a5276ec0 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.Theming/Volo.Abp.AspNetCore.Components.WebAssembly.Theming.csproj
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.Theming/Volo.Abp.AspNetCore.Components.WebAssembly.Theming.csproj
@@ -5,6 +5,8 @@
 
     <PropertyGroup>
         <TargetFramework>net7.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <WarningsAsErrors>Nullable</WarningsAsErrors>
     </PropertyGroup>
 
     <ItemGroup>
diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Microsoft/Extensions/DependencyInjection/EmptyWebAssemblyHostEnvironment.cs b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Microsoft/Extensions/DependencyInjection/EmptyWebAssemblyHostEnvironment.cs
index 6393948af7..f06bb37911 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Microsoft/Extensions/DependencyInjection/EmptyWebAssemblyHostEnvironment.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Microsoft/Extensions/DependencyInjection/EmptyWebAssemblyHostEnvironment.cs
@@ -4,7 +4,7 @@ namespace Microsoft.Extensions.DependencyInjection;
 
 public class EmptyWebAssemblyHostEnvironment : IWebAssemblyHostEnvironment
 {
-    public string Environment { get; set; }
+    public string Environment { get; set; } = default!;
 
-    public string BaseAddress { get; set; }
+    public string BaseAddress { get; set; } = default!;
 }
diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/ApplicationConfigurationCache.cs b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/ApplicationConfigurationCache.cs
index b55d8d8a56..3d2c64ff4e 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/ApplicationConfigurationCache.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/ApplicationConfigurationCache.cs
@@ -5,9 +5,9 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly;
 
 public class ApplicationConfigurationCache : ISingletonDependency
 {
-    protected ApplicationConfigurationDto Configuration { get; set; }
+    protected ApplicationConfigurationDto? Configuration { get; set; }
 
-    public virtual ApplicationConfigurationDto Get()
+    public virtual ApplicationConfigurationDto? Get()
     {
         return Configuration;
     }
diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/WebAssemblyCurrentTenantAccessor.cs b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/WebAssemblyCurrentTenantAccessor.cs
index e24746f85a..92ba34c4be 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/WebAssemblyCurrentTenantAccessor.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/WebAssembly/WebAssemblyCurrentTenantAccessor.cs
@@ -6,5 +6,5 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly;
 [Dependency(ReplaceServices = true)]
 public class WebAssemblyCurrentTenantAccessor : ICurrentTenantAccessor, ISingletonDependency
 {
-    public BasicTenantInfo Current { get; set; }
+    public BasicTenantInfo? Current { get; set; }
 }