diff --git a/SwiftExample/SwiftExample.xcodeproj/project.pbxproj b/SwiftExample/SwiftExample.xcodeproj/project.pbxproj
index a757793..1de6c5c 100644
--- a/SwiftExample/SwiftExample.xcodeproj/project.pbxproj
+++ b/SwiftExample/SwiftExample.xcodeproj/project.pbxproj
@@ -27,8 +27,6 @@
 		EE0954E71B97DDF4007F6964 /* FSCalendarConstance.m in Sources */ = {isa = PBXBuildFile; fileRef = EE0954D61B97DDF4007F6964 /* FSCalendarConstance.m */; };
 		EE0954E81B97DDF4007F6964 /* FSCalendarHeader.m in Sources */ = {isa = PBXBuildFile; fileRef = EE0954D91B97DDF4007F6964 /* FSCalendarHeader.m */; };
 		EE0954EA1B97DDF4007F6964 /* Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = EE0954DC1B97DDF4007F6964 /* Info.plist */; };
-		EE0954EB1B97DDF4007F6964 /* NSDate+FSExtension.m in Sources */ = {isa = PBXBuildFile; fileRef = EE0954DE1B97DDF4007F6964 /* NSDate+FSExtension.m */; };
-		EE0954EC1B97DDF4007F6964 /* NSString+FSExtension.m in Sources */ = {isa = PBXBuildFile; fileRef = EE0954E01B97DDF4007F6964 /* NSString+FSExtension.m */; };
 		EE0954ED1B97DDF4007F6964 /* UIView+FSExtension.m in Sources */ = {isa = PBXBuildFile; fileRef = EE0954E21B97DDF4007F6964 /* UIView+FSExtension.m */; };
 		EE2B62831BB6D7FE00ACB430 /* FSCalendarStickyHeader.m in Sources */ = {isa = PBXBuildFile; fileRef = EE2B62821BB6D7FE00ACB430 /* FSCalendarStickyHeader.m */; };
 		EEC9C0401BDCA2D600383A07 /* FSCalendarCollectionView.m in Sources */ = {isa = PBXBuildFile; fileRef = EEC9C03D1BDCA2D600383A07 /* FSCalendarCollectionView.m */; };
@@ -79,10 +77,6 @@
 		EE0954D81B97DDF4007F6964 /* FSCalendarHeader.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FSCalendarHeader.h; sourceTree = "<group>"; };
 		EE0954D91B97DDF4007F6964 /* FSCalendarHeader.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = FSCalendarHeader.m; sourceTree = "<group>"; };
 		EE0954DC1B97DDF4007F6964 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-		EE0954DD1B97DDF4007F6964 /* NSDate+FSExtension.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSDate+FSExtension.h"; sourceTree = "<group>"; };
-		EE0954DE1B97DDF4007F6964 /* NSDate+FSExtension.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSDate+FSExtension.m"; sourceTree = "<group>"; };
-		EE0954DF1B97DDF4007F6964 /* NSString+FSExtension.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSString+FSExtension.h"; sourceTree = "<group>"; };
-		EE0954E01B97DDF4007F6964 /* NSString+FSExtension.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSString+FSExtension.m"; sourceTree = "<group>"; };
 		EE0954E11B97DDF4007F6964 /* UIView+FSExtension.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "UIView+FSExtension.h"; sourceTree = "<group>"; };
 		EE0954E21B97DDF4007F6964 /* UIView+FSExtension.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "UIView+FSExtension.m"; sourceTree = "<group>"; };
 		EE0954EE1B97DE08007F6964 /* Objc-Bridge-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Objc-Bridge-Header.h"; sourceTree = "<group>"; };
@@ -195,10 +189,6 @@
 				EE0954D91B97DDF4007F6964 /* FSCalendarHeader.m */,
 				EE2B62811BB6D7FE00ACB430 /* FSCalendarStickyHeader.h */,
 				EE2B62821BB6D7FE00ACB430 /* FSCalendarStickyHeader.m */,
-				EE0954DD1B97DDF4007F6964 /* NSDate+FSExtension.h */,
-				EE0954DE1B97DDF4007F6964 /* NSDate+FSExtension.m */,
-				EE0954DF1B97DDF4007F6964 /* NSString+FSExtension.h */,
-				EE0954E01B97DDF4007F6964 /* NSString+FSExtension.m */,
 				EE0954E11B97DDF4007F6964 /* UIView+FSExtension.h */,
 				EE0954E21B97DDF4007F6964 /* UIView+FSExtension.m */,
 				300BFB0D1C6446F300399553 /* CALayer+FSExtension.h */,
@@ -321,7 +311,6 @@
 				EEC9C0401BDCA2D600383A07 /* FSCalendarCollectionView.m in Sources */,
 				EE0954E81B97DDF4007F6964 /* FSCalendarHeader.m in Sources */,
 				EE0954E31B97DDF4007F6964 /* FSCalendar+IBExtension.m in Sources */,
-				EE0954EC1B97DDF4007F6964 /* NSString+FSExtension.m in Sources */,
 				300BFB0F1C6446F300399553 /* CALayer+FSExtension.m in Sources */,
 				EE0954ED1B97DDF4007F6964 /* UIView+FSExtension.m in Sources */,
 				300414251CD751CF00453AEB /* FSCalendar+DateTools.m in Sources */,
@@ -332,7 +321,6 @@
 				3078A8B11C50C0ED003D33EF /* FSCalendarFlowLayout.m in Sources */,
 				EE0954E51B97DDF4007F6964 /* FSCalendarAppearance.m in Sources */,
 				EE0954E71B97DDF4007F6964 /* FSCalendarConstance.m in Sources */,
-				EE0954EB1B97DDF4007F6964 /* NSDate+FSExtension.m in Sources */,
 				EE0954AD1B97DDE0007F6964 /* AppDelegate.swift in Sources */,
 				EE0954AF1B97DDE0007F6964 /* ViewController.swift in Sources */,
 				300414221CD751B200453AEB /* FSCalendarScopeHandle.m in Sources */,
diff --git a/SwiftExample/SwiftExample/Objc-Bridge-Header.h b/SwiftExample/SwiftExample/Objc-Bridge-Header.h
index 1adc041..3722f12 100644
--- a/SwiftExample/SwiftExample/Objc-Bridge-Header.h
+++ b/SwiftExample/SwiftExample/Objc-Bridge-Header.h
@@ -10,6 +10,5 @@
 #define SwiftExample_Objc_Bridge_Header_h
 
 #import "FSCalendar.h"
-#import "NSString+FSExtension.h"
 
 #endif