diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java
index faef60043..b576f0978 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java
@@ -101,10 +101,6 @@ public final class AccountHelper {
         private final boolean refresh;
         private final List<Task> dependencies = new LinkedList<>();
 
-        public SkinLoadTask(YggdrasilAccount account) {
-            this(account, false);
-        }
-
         public SkinLoadTask(YggdrasilAccount account, boolean refresh) {
             this.account = account;
             this.refresh = refresh;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
index e1e15a72d..83ad03709 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
@@ -33,8 +33,6 @@ import java.util.List;
 import java.util.Optional;
 import java.util.logging.Level;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-
 /**
  * @author huangyuhui
  */
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameLauncher.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameLauncher.java
index bf7bf4036..f586b2e29 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameLauncher.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameLauncher.java
@@ -21,9 +21,7 @@ import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.auth.AuthInfo;
 import org.jackhuang.hmcl.launch.DefaultLauncher;
 import org.jackhuang.hmcl.launch.ProcessListener;
-import org.jackhuang.hmcl.util.CommandBuilder;
 
-import java.util.List;
 import java.util.Map;
 
 /**
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
index 0033ae6bd..4d4ea3f04 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
@@ -34,8 +34,6 @@ import java.io.IOException;
 import java.util.*;
 import java.util.logging.Level;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-
 public class HMCLGameRepository extends DefaultGameRepository {
     private final Profile profile;
     private final Map<String, VersionSetting> versionSettings = new HashMap<>();
@@ -81,7 +79,6 @@ public class HMCLGameRepository extends DefaultGameRepository {
 
     @Override
     public File getLibraryFile(Version version, Library lib) {
-        VersionSetting vs = profile.getVersionSetting(version.getId());
         File self = super.getLibraryFile(version, lib);
         if (Settings.instance().isCommonDirectoryDisabled() || self.exists())
             return self;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackInstallTask.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackInstallTask.java
index b90162f04..f3a223794 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackInstallTask.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackInstallTask.java
@@ -35,7 +35,6 @@ import java.io.File;
 import java.io.IOException;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Objects;
 
 public final class HMCLModpackInstallTask extends Task {
     private final File zipFile;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LeftPaneController.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LeftPaneController.java
index 562d41b37..849f5ed63 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LeftPaneController.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LeftPaneController.java
@@ -26,7 +26,6 @@ import javafx.scene.layout.Region;
 import javafx.scene.layout.VBox;
 import javafx.scene.paint.Color;
 
-import org.jackhuang.hmcl.auth.Account;
 import org.jackhuang.hmcl.event.*;
 import org.jackhuang.hmcl.game.HMCLGameRepository;
 import org.jackhuang.hmcl.game.ModpackHelper;
@@ -46,7 +45,6 @@ import org.jackhuang.hmcl.util.Lang;
 import java.io.File;
 import java.util.LinkedList;
 import java.util.Objects;
-import java.util.Optional;
 import java.util.concurrent.atomic.AtomicReference;
 
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
@@ -54,7 +52,6 @@ import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 public final class LeftPaneController {
     private final AdvancedListBox leftPane;
     private final VBox profilePane = new VBox();
-    private final VBox accountPane = new VBox();
 
     public LeftPaneController(AdvancedListBox leftPane) {
         this.leftPane = leftPane;
@@ -98,11 +95,6 @@ public final class LeftPaneController {
     }
 
     // ==== Accounts ====
-    private Optional<Account> getAccountFromItem(RipplerContainer accountItem) {
-        return Optional.ofNullable(accountItem.getProperties().get("account"))
-                .map(Account.class::cast);
-    }
-
     public void checkAccount() {
         if (Accounts.getAccounts().isEmpty())
             addNewAccount();
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsView.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsView.java
index 9149bc294..810bf98ce 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsView.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsView.java
@@ -18,7 +18,6 @@
 package org.jackhuang.hmcl.ui;
 
 import com.jfoenix.controls.*;
-import javafx.fxml.FXML;
 import javafx.geometry.HPos;
 import javafx.geometry.Pos;
 import javafx.geometry.VPos;
@@ -31,7 +30,6 @@ import org.jackhuang.hmcl.setting.EnumBackgroundImage;
 import org.jackhuang.hmcl.setting.EnumCommonDirectory;
 import org.jackhuang.hmcl.setting.Theme;
 import org.jackhuang.hmcl.ui.construct.*;
-import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.i18n.I18n;
 
 public abstract class SettingsView extends StackPane {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionPage.java
index 28745ca8c..beab5bd96 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionPage.java
@@ -27,9 +27,7 @@ import javafx.fxml.FXML;
 import javafx.scene.control.Tab;
 import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.download.game.GameAssetIndexDownloadTask;
-import org.jackhuang.hmcl.setting.EnumGameDirectory;
 import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.ui.export.ExportWizardProvider;
 import org.jackhuang.hmcl.ui.versions.Versions;
 import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
 import org.jackhuang.hmcl.util.FileUtils;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionSettingsController.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionSettingsController.java
index aea799b94..62e3ae16e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionSettingsController.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/VersionSettingsController.java
@@ -26,7 +26,6 @@ import javafx.beans.binding.Bindings;
 import javafx.fxml.FXML;
 import javafx.scene.control.Label;
 import javafx.scene.control.ScrollPane;
-import javafx.scene.control.Toggle;
 import javafx.scene.image.Image;
 import javafx.scene.layout.VBox;
 import javafx.stage.FileChooser;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListViewModel.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListViewModel.java
index d952e2772..034cde399 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListViewModel.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListViewModel.java
@@ -26,11 +26,8 @@ import javafx.scene.control.ToggleGroup;
 import org.jackhuang.hmcl.auth.Account;
 import org.jackhuang.hmcl.setting.Accounts;
 import org.jackhuang.hmcl.ui.Controllers;
-import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.util.MappedObservableList;
 
-import java.util.Comparator;
-
 import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
 
 public class AccountListViewModel {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationProducer.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationProducer.java
index 5611ba16a..770f87810 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationProducer.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationProducer.java
@@ -18,7 +18,6 @@
 package org.jackhuang.hmcl.ui.animation;
 
 import javafx.animation.KeyFrame;
-import javafx.util.Duration;
 
 import java.util.List;
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/ContainerAnimations.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/ContainerAnimations.java
index 7a358f10e..8eaf67baa 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/ContainerAnimations.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/ContainerAnimations.java
@@ -20,14 +20,11 @@ package org.jackhuang.hmcl.ui.animation;
 import javafx.animation.Interpolator;
 import javafx.animation.KeyFrame;
 import javafx.animation.KeyValue;
-import javafx.scene.Node;
 import javafx.util.Duration;
-import org.jackhuang.hmcl.util.Lang;
 
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
-import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Function;
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FontComboBox.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FontComboBox.java
index 51d3fc115..2708b3f5a 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FontComboBox.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FontComboBox.java
@@ -19,7 +19,6 @@ package org.jackhuang.hmcl.ui.construct;
 
 import com.jfoenix.controls.JFXComboBox;
 import javafx.beans.NamedArg;
-import javafx.collections.FXCollections;
 import javafx.scene.control.ListCell;
 import javafx.scene.text.Font;
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/DownloadWizardProvider.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/DownloadWizardProvider.java
index f5635bdc0..55eb136c2 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/DownloadWizardProvider.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/DownloadWizardProvider.java
@@ -29,7 +29,6 @@ import org.jackhuang.hmcl.setting.Settings;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.ui.wizard.WizardController;
 import org.jackhuang.hmcl.ui.wizard.WizardProvider;
-import org.jackhuang.hmcl.util.Lang;
 import java.io.File;
 import java.util.Map;
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/InstallerWizardProvider.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/InstallerWizardProvider.java
index b5d08c8c5..c98451914 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/InstallerWizardProvider.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/InstallerWizardProvider.java
@@ -19,7 +19,6 @@ package org.jackhuang.hmcl.ui.download;
 
 import javafx.scene.Node;
 
-import org.jackhuang.hmcl.download.BMCLAPIDownloadProvider;
 import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.LibraryAnalyzer;
 import org.jackhuang.hmcl.download.RemoteVersion;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/VersionsPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/VersionsPage.java
index dfc810060..6e4ff09d1 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/VersionsPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/download/VersionsPage.java
@@ -27,7 +27,6 @@ import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.download.DownloadProvider;
-import org.jackhuang.hmcl.download.RemoteVersion;
 import org.jackhuang.hmcl.download.VersionList;
 import org.jackhuang.hmcl.task.TaskExecutor;
 import org.jackhuang.hmcl.ui.FXUtils;
@@ -39,7 +38,6 @@ import org.jackhuang.hmcl.ui.wizard.WizardPage;
 
 import java.util.List;
 import java.util.Map;
-import java.util.Objects;
 import java.util.stream.Collectors;
 
 public final class VersionsPage extends StackPane implements WizardPage, Refreshable {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
index 4a9ee699e..93469c1e4 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
@@ -79,8 +79,6 @@ public final class ExportWizardProvider implements WizardProvider {
 
                 if (includeLauncher) {
                     dependency = dependency.then(Task.of(() -> {
-                        boolean flag = true;
-
                         try (Zipper zip = new Zipper(modpackFile.toPath())) {
                             Config exported = new Config();
                             exported.setBackgroundImageType(config().getBackgroundImageType());