diff --git a/Source/ThirdParty/nethost/nethost.Build.cs b/Source/ThirdParty/nethost/nethost.Build.cs
index 380ec4d11..8b355d765 100644
--- a/Source/ThirdParty/nethost/nethost.Build.cs
+++ b/Source/ThirdParty/nethost/nethost.Build.cs
@@ -39,6 +39,8 @@ public class nethost : ThirdPartyModule
                 return; // Ignore missing Host Runtime when engine is already prebuilt
             if (options.Flags.HasFlag(BuildFlags.GenerateProject))
                 return; // Ignore missing Host Runtime at projects evaluation stage (not important)
+            if (Configuration.BuildBindingsOnly)
+                return; // Ignore missing Host Runtime when just building C# bindings (without native code)
             throw new Exception($"Missing NET SDK runtime for {options.Platform.Target} {options.Architecture}.");
         }
 
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
index c5650e2e9..86dbd0cfe 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
@@ -1035,7 +1035,7 @@ namespace Flax.Build.Bindings
                 contents.Append("bool bind);");
 #else
                 string libraryEntryPoint;
-                if (buildData.Toolchain.Compiler == TargetCompiler.MSVC)
+                if (buildData.Toolchain?.Compiler == TargetCompiler.MSVC)
                     libraryEntryPoint = $"{classInfo.FullNameManaged}::Internal_{eventInfo.Name}_Bind"; // MSVC allows to override exported symbol name
                 else
                     libraryEntryPoint = CppNameMangling.MangleFunctionName(buildData, eventInfo.Name + "_ManagedBind", classInfo.FullNameNativeInternal + "Internal", CSharpEventBindReturn, eventInfo.IsStatic ? null : new TypeInfo(classInfo.FullNameNative) { IsPtr = true }, CSharpEventBindParams);
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
index c9a4ca277..665063613 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
@@ -984,7 +984,7 @@ namespace Flax.Build.Bindings
             bool useLibraryExportInPlainC = false; // True if generate separate wrapper for library imports that uses plain-C style binding (without C++ name mangling)
 #if USE_NETCORE
             string libraryEntryPoint;
-            if (buildData.Toolchain.Compiler == TargetCompiler.MSVC)
+            if (buildData.Toolchain?.Compiler == TargetCompiler.MSVC)
             {
                 libraryEntryPoint = $"{caller.FullNameManaged}::Internal_{functionInfo.UniqueName}"; // MSVC allows to override exported symbol name
             }
@@ -1123,7 +1123,7 @@ namespace Flax.Build.Bindings
             contents.AppendLine();
             contents.Append(prevIndent).AppendLine("{");
 #if USE_NETCORE
-            if (buildData.Toolchain.Compiler == TargetCompiler.MSVC && !useLibraryExportInPlainC)
+            if (buildData.Toolchain?.Compiler == TargetCompiler.MSVC && !useLibraryExportInPlainC)
                 contents.Append(indent).AppendLine($"MSVC_FUNC_EXPORT(\"{libraryEntryPoint}\")"); // Export generated function binding under the C# name
 #endif
             if (!functionInfo.IsStatic)
@@ -2003,7 +2003,7 @@ namespace Flax.Build.Bindings
                     bool useSeparateImpl = false; // True if separate function declaration from implementation
                     contents.AppendFormat("    DLLEXPORT static void {0}_ManagedBind(", eventInfo.Name);
                     var signatureStart = contents.Length;
-                    if (buildData.Toolchain.Compiler == TargetCompiler.Clang)
+                    if (buildData.Toolchain?.Compiler == TargetCompiler.Clang)
                         useSeparateImpl = true; // DLLEXPORT doesn't properly export function thus separate implementation from declaration
                     if (!eventInfo.IsStatic)
                         contents.AppendFormat("{0}* obj, ", classTypeNameNative);
@@ -2021,7 +2021,7 @@ namespace Flax.Build.Bindings
                         indent = null;
                     }
                     contents.AppendLine().Append(indent).Append('{').AppendLine();
-                    if (buildData.Toolchain.Compiler == TargetCompiler.MSVC)
+                    if (buildData.Toolchain?.Compiler == TargetCompiler.MSVC)
                         contents.Append(indent).AppendLine($"    MSVC_FUNC_EXPORT(\"{classTypeNameManaged}::Internal_{eventInfo.Name}_Bind\")"); // Export generated function binding under the C# name
                     contents.Append(indent).Append("    Function<void(");
                     for (var i = 0; i < paramsCount; i++)
diff --git a/Source/Tools/Flax.Build/Utilities/CppNameMangling.cs b/Source/Tools/Flax.Build/Utilities/CppNameMangling.cs
index 590f83270..1d0166a72 100644
--- a/Source/Tools/Flax.Build/Utilities/CppNameMangling.cs
+++ b/Source/Tools/Flax.Build/Utilities/CppNameMangling.cs
@@ -39,6 +39,8 @@ namespace Flax.Build
         {
             if (name.Contains(":"))
                 throw new NotImplementedException("No nested types mangling support.");
+            if (buildData.Toolchain == null)
+                return name; // Ignore when building C# bindings only without native toolchain
             var sb = BindingsGenerator.GetStringBuilder();
             switch (buildData.Toolchain.Compiler)
             {