diff --git a/Assets/AsmdefHelper/SyncSolution.meta b/Assets/AsmdefHelper/SyncSolution.meta
deleted file mode 100644
index 3919f83..0000000
--- a/Assets/AsmdefHelper/SyncSolution.meta
+++ /dev/null
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 3343c43624a31f447a1961156a2cac6e
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/AsmdefHelper/SyncSolution/Editor.meta b/Assets/AsmdefHelper/SyncSolution/Editor.meta
deleted file mode 100644
index 4d4a92a..0000000
--- a/Assets/AsmdefHelper/SyncSolution/Editor.meta
+++ /dev/null
@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 07e92c78d576a8a458ce4a298eeb512d
-folderAsset: yes
-DefaultImporter:
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diff --git a/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef b/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef
deleted file mode 100644
index 602a998..0000000
--- a/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-    "name": "AsmdefHelper.SyncSolution.Editor",
-    "references": [
-        "GUID:211243abc45174c45b3a6c275ea126b9"
-    ],
-    "includePlatforms": [
-        "Editor"
-    ],
-    "excludePlatforms": [],
-    "allowUnsafeCode": false,
-    "overrideReferences": false,
-    "precompiledReferences": [],
-    "autoReferenced": true,
-    "defineConstraints": [],
-    "versionDefines": [],
-    "noEngineReferences": false
-}
\ No newline at end of file
diff --git a/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef.meta b/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef.meta
deleted file mode 100644
index fec76e6..0000000
--- a/Assets/AsmdefHelper/SyncSolution/Editor/AsmdefHelper.SyncSolution.Editor.asmdef.meta
+++ /dev/null
@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: dcfd308825181f346bc76cac8ae79330
-AssemblyDefinitionImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
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diff --git a/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs b/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs
deleted file mode 100644
index eb4ca67..0000000
--- a/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs
+++ /dev/null
@@ -1,57 +0,0 @@
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using UnityEditor;
-using UnityEngine;
-using AsmdefHelper.UnityInternal;
-
-// https://forum.unity.com/threads/solved-unity-not-generating-sln-file-from-assets-open-c-project.538487/
-// Thank you Flexford!
-namespace AsmdefHelper.SyncSolution.Editor {
-    public static class SyncSolutionUtilities {
-
-        [MenuItem("AsmdefHelper/Sync C# Solution", priority = 3000)]
-        public static void Sync() {
-            Sync(true);
-        }
-
-        static void Sync(bool logsEnabled) {
-            CleanOldFiles(logsEnabled);
-            Call_SyncSolution(logsEnabled);
-            Call_SynchronizerSync(logsEnabled);
-        }
-
-        static void CleanOldFiles(bool logsEnabled) {
-            var assetsDirectoryInfo = new DirectoryInfo(Application.dataPath);
-            var projectDirectoryInfo = assetsDirectoryInfo.Parent;
-
-            var files = GetFilesByExtensions(projectDirectoryInfo, "*.sln", "*.csproj");
-            foreach (var file in files) {
-                if (logsEnabled) {
-                    Debug.Log($"Remove old solution file: {file.Name}");
-                }
-                file.Delete();
-            }
-        }
-
-        static void Call_SyncSolution(bool logsEnabled) {
-            if (logsEnabled) {
-                Debug.Log($"Coll method: SyncVS.Sync()");
-            }
-            SolutionSynchronizerWrapper.SyncSolution();
-        }
-
-        static void Call_SynchronizerSync(bool logsEnabled) {
-            if (logsEnabled) {
-                Debug.Log($"Coll method: SyncVS.Synchronizer.Sync()");
-            }
-            SolutionSynchronizerWrapper.SynchronizerSync();
-        }
-
-        static IEnumerable<FileInfo> GetFilesByExtensions(DirectoryInfo dir, params string[] extensions) {
-            extensions = extensions ?? new[] { "*" };
-            var files = Enumerable.Empty<FileInfo>();
-            return extensions.Aggregate(files, (current, ext) => current.Concat(dir.GetFiles(ext)));
-        }
-    }
-}
diff --git a/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs.meta b/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs.meta
deleted file mode 100644
index fa31055..0000000
--- a/Assets/AsmdefHelper/SyncSolution/Editor/SyncSolutionUtilities.cs.meta
+++ /dev/null
@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: e5785f4c5d9ed634799d54e96aabf408
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs b/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs
deleted file mode 100644
index c66c13d..0000000
--- a/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-using UnityEditor;
-using UnityEditor.VisualStudioIntegration;
-
-namespace AsmdefHelper.UnityInternal {
-    public static class SolutionSynchronizerWrapper {
-
-        static readonly SolutionSynchronizer synchronizer;
-
-        static SolutionSynchronizerWrapper() {
-            synchronizer = SyncVS.Synchronizer;
-        }
-
-        public static void SyncSolution() {
-            SyncVS.SyncSolution();
-        }
-
-
-        public static void SynchronizerSync() {
-            synchronizer?.Sync();
-        }
-    }
-}
diff --git a/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs.meta b/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs.meta
deleted file mode 100644
index c3db60a..0000000
--- a/Assets/AsmdefHelper/Unity.InternalAPIEditorBridgeDev.001/SolutionSynchronizerWrapper.cs.meta
+++ /dev/null
@@ -1,3 +0,0 @@
-fileFormatVersion: 2
-guid: aeb995b6396143f58028eb4aa639c7c4
-timeCreated: 1586952223
\ No newline at end of file