diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 2bafae48..f3422a84 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -30,10 +30,6 @@
         <module name="ms-wallet" />
       </profile>
     </annotationProcessing>
-    <bytecodeTargetLevel>
-      <module name="rough" target="21" />
-      <module name="rough-dependencies" target="21" />
-    </bytecodeTargetLevel>
   </component>
   <component name="EclipseCompilerSettings">
     <option name="ADDITIONAL_OPTIONS_OVERRIDE">
@@ -45,7 +41,6 @@
       <module name="ds-base" options="-parameters" />
       <module name="ds-build" options="-parameters" />
       <module name="ds-exam" options="" />
-      <module name="rough" options="" />
     </option>
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index a9fc6872..8078ecc0 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -21,5 +21,5 @@
       </set>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK" />
 </project>
\ No newline at end of file
diff --git a/ds-base/src/main/java/com/dsideal/base/Teacher/Model/TeacherModel.java b/ds-base/src/main/java/com/dsideal/base/Teacher/Model/TeacherModel.java
index 64fc1271..2f05bd5f 100644
--- a/ds-base/src/main/java/com/dsideal/base/Teacher/Model/TeacherModel.java
+++ b/ds-base/src/main/java/com/dsideal/base/Teacher/Model/TeacherModel.java
@@ -266,7 +266,7 @@ public class TeacherModel {
         String sql = Db.getSql("loginPerson.getLoginInfoByPersonId");
         List<Record> list = Db.find(sql, person_id);
         if (!list.isEmpty()) {
-            Record record = list.getFirst();
+            Record record = list.get(0);
             return record;
         } else {
             return null;