diff --git a/client/.idea/workspace.xml b/client/.idea/workspace.xml
index 6ce37b49..8ecb125f 100644
--- a/client/.idea/workspace.xml
+++ b/client/.idea/workspace.xml
@@ -6,8 +6,6 @@
   <component name="ChangeListManager">
     <list default="true" id="5b21be5b-2c8c-4bd1-b7ab-c208ec551126" name="Changes" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/front/lib/check_image.dart" beforeDir="false" afterPath="$PROJECT_DIR$/front/lib/check_image.dart" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/front/lib/login.dart" beforeDir="false" afterPath="$PROJECT_DIR$/front/lib/login.dart" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/front/lib/sign_up.dart" beforeDir="false" afterPath="$PROJECT_DIR$/front/lib/sign_up.dart" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -43,24 +41,24 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.cidr.known.project.marker&quot;: &quot;true&quot;,
-    &quot;cf.first.check.clang-format&quot;: &quot;false&quot;,
-    &quot;cidr.known.project.marker&quot;: &quot;true&quot;,
-    &quot;dart.analysis.tool.window.visible&quot;: &quot;false&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;feature/114-마진-패딩값-조정-에러-처리-함수수정&quot;,
-    &quot;io.flutter.reload.alreadyRun&quot;: &quot;true&quot;,
-    &quot;last_opened_file_path&quot;: &quot;E:/wap/2024-1_App1/client/front&quot;,
-    &quot;project.structure.last.edited&quot;: &quot;Modules&quot;,
-    &quot;project.structure.proportion&quot;: &quot;0.15&quot;,
-    &quot;project.structure.side.proportion&quot;: &quot;0.2&quot;,
-    &quot;settings.editor.selected.configurable&quot;: &quot;reference.settingsdialog.project.gradle&quot;,
-    &quot;show.migrate.to.gradle.popup&quot;: &quot;false&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.cidr.known.project.marker": "true",
+    "cf.first.check.clang-format": "false",
+    "cidr.known.project.marker": "true",
+    "dart.analysis.tool.window.visible": "false",
+    "git-widget-placeholder": "main",
+    "io.flutter.reload.alreadyRun": "true",
+    "last_opened_file_path": "E:/wap/2024-1_App1/client/front",
+    "project.structure.last.edited": "Modules",
+    "project.structure.proportion": "0.15",
+    "project.structure.side.proportion": "0.2",
+    "settings.editor.selected.configurable": "reference.settingsdialog.project.gradle",
+    "show.migrate.to.gradle.popup": "false"
   }
-}</component>
+}]]></component>
   <component name="RunManager" selected="Flutter.main_act">
     <configuration name="main.dart" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application" temporary="true" nameIsGenerated="true">
       <option name="filePath" value="$PROJECT_DIR$/front/lib/main.dart" />
diff --git a/client/front/lib/sign_up.dart b/client/front/lib/sign_up.dart
index 53525fc8..56cc1cb9 100644
--- a/client/front/lib/sign_up.dart
+++ b/client/front/lib/sign_up.dart
@@ -59,11 +59,8 @@ class _SignUpScreenState extends State<SignUpScreen> {
     else {
       Map<String, dynamic> json = jsonDecode(response.body);
       Error error = Error.fromJson(json);
-      if(response.statusCode == 400)
+      if(error.code == "DUPLICATE_DATA")
       {
-        print(error.httpStatus+'\n');
-        print(error.message+'\n');
-        print(error.code+'\n');
         showDialog(
           context: context,
           builder: (BuildContext context) {
@@ -81,11 +78,8 @@ class _SignUpScreenState extends State<SignUpScreen> {
           },
         );
       }
-      else if(response.statusCode == 415)
+      else if(error.code == "INVALID_FORMAT")
         {
-          print(error.httpStatus+'\n');
-          print(error.message+'\n');
-          print(error.code+'\n');
           showDialog(
             context: context,
             builder: (BuildContext context) {