diff --git a/src/Neo.Compiler.CSharp/MethodConvert/ConstructorConvert.cs b/src/Neo.Compiler.CSharp/MethodConvert/ConstructorConvert.cs
index 5efa72362..eb3f9e81a 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/ConstructorConvert.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/ConstructorConvert.cs
@@ -13,13 +13,8 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Neo.IO;
-using Neo.SmartContract;
-using Neo.SmartContract.Native;
 using Neo.VM;
-using scfx::Neo.SmartContract.Framework.Attributes;
-using System;
 using System.Linq;
-using System.Runtime.InteropServices;
 
 namespace Neo.Compiler;
 
diff --git a/src/Neo.Compiler.CSharp/MethodConvert/Expression/Expression.cs b/src/Neo.Compiler.CSharp/MethodConvert/Expression/Expression.cs
index a569990e2..bf724756a 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/Expression/Expression.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/Expression/Expression.cs
@@ -160,7 +160,6 @@ private void EnsureIntegerInRange(ITypeSymbol type)
         endTarget.Instruction = AddInstruction(OpCode.NOP);
     }
 
-
     private void ConvertObjectToString(SemanticModel model, ExpressionSyntax expression)
     {
         ITypeSymbol? type = model.GetTypeInfo(expression).Type;
diff --git a/src/Neo.Compiler.CSharp/MethodConvert/MethodConvert.cs b/src/Neo.Compiler.CSharp/MethodConvert/MethodConvert.cs
index 90f82350e..21fb5e141 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/MethodConvert.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/MethodConvert.cs
@@ -30,7 +30,6 @@ namespace Neo.Compiler
 {
     partial class MethodConvert
     {
-
         #region Fields
 
         private readonly CompilationContext context;
diff --git a/src/Neo.Compiler.CSharp/MethodConvert/Pattern/BinaryPattern.cs b/src/Neo.Compiler.CSharp/MethodConvert/Pattern/BinaryPattern.cs
index ddf3db68f..551e420fb 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/Pattern/BinaryPattern.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/Pattern/BinaryPattern.cs
@@ -18,7 +18,6 @@ namespace Neo.Compiler;
 
 partial class MethodConvert
 {
-
     private void ConvertBinaryPattern(SemanticModel model, BinaryPatternSyntax pattern, byte localIndex)
     {
         switch (pattern.OperatorToken.ValueText)
diff --git a/src/Neo.Compiler.CSharp/MethodConvert/Pattern/Pattern.cs b/src/Neo.Compiler.CSharp/MethodConvert/Pattern/Pattern.cs
index 057586d79..698858c30 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/Pattern/Pattern.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/Pattern/Pattern.cs
@@ -12,7 +12,6 @@
 
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
-using Neo.VM;
 
 namespace Neo.Compiler;
 
diff --git a/src/Neo.Compiler.CSharp/MethodConvert/StackHelpers.cs b/src/Neo.Compiler.CSharp/MethodConvert/StackHelpers.cs
index 69da27b47..115690f81 100644
--- a/src/Neo.Compiler.CSharp/MethodConvert/StackHelpers.cs
+++ b/src/Neo.Compiler.CSharp/MethodConvert/StackHelpers.cs
@@ -9,12 +9,11 @@
 // modifications are permitted.
 
 extern alias scfx;
-
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
 using Neo.VM;
-using System.Buffers.Binary;
 using System;
+using System.Buffers.Binary;
 using System.Numerics;
 
 namespace Neo.Compiler;