diff --git a/AIStudyApp/AIStudyApp.xcodeproj/project.pbxproj b/AIStudyApp/AIStudyApp.xcodeproj/project.pbxproj
index d3de943..5fab4b7 100644
--- a/AIStudyApp/AIStudyApp.xcodeproj/project.pbxproj
+++ b/AIStudyApp/AIStudyApp.xcodeproj/project.pbxproj
@@ -255,7 +255,8 @@
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SELECTED_FILES = readonly;
 				INFOPLIST_FILE = Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 26.4;
+				INFOPLIST_KEY_CFBundleDisplayName = "知习";
+				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 26.4;
@@ -289,7 +290,8 @@
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SELECTED_FILES = readonly;
 				INFOPLIST_FILE = Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 26.4;
+				INFOPLIST_KEY_CFBundleDisplayName = "知习";
+				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 26.4;
diff --git a/AIStudyApp/AIStudyApp/Features/Study/LearningSessionView.swift b/AIStudyApp/AIStudyApp/Features/Study/LearningSessionView.swift
index 472b35c..2ead523 100644
--- a/AIStudyApp/AIStudyApp/Features/Study/LearningSessionView.swift
+++ b/AIStudyApp/AIStudyApp/Features/Study/LearningSessionView.swift
@@ -1,4 +1,5 @@
 import SwiftUI
+import Combine
 
 struct LearningSessionView: View {
     let taskTitle: String