diff --git a/Framework/YYCache.xcodeproj/project.pbxproj b/Framework/YYCache.xcodeproj/project.pbxproj
index b5aa628..de9be0c 100644
--- a/Framework/YYCache.xcodeproj/project.pbxproj
+++ b/Framework/YYCache.xcodeproj/project.pbxproj
@@ -139,7 +139,7 @@
 		D93C45A31F05445A009F80F9 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0900;
+				LastUpgradeCheck = 1320;
 				ORGANIZATIONNAME = ibireme;
 				TargetAttributes = {
 					D93C45AB1F05445A009F80F9 = {
@@ -153,6 +153,7 @@
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = D93C45A21F05445A009F80F9;
 			productRefGroup = D93C45AD1F05445A009F80F9 /* Products */;
@@ -203,6 +204,7 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
@@ -210,8 +212,10 @@
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -261,6 +265,7 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
@@ -268,8 +273,10 @@
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
diff --git a/Framework/YYCache.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/Framework/YYCache.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/Framework/YYCache.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/Framework/YYCache.xcodeproj/xcshareddata/xcschemes/YYCache.xcscheme b/Framework/YYCache.xcodeproj/xcshareddata/xcschemes/YYCache.xcscheme
index 7cf8948..c9e343a 100644
--- a/Framework/YYCache.xcodeproj/xcshareddata/xcschemes/YYCache.xcscheme
+++ b/Framework/YYCache.xcodeproj/xcshareddata/xcschemes/YYCache.xcscheme
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0900"
-   version = "1.8">
+   LastUpgradeVersion = "1320"
+   version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -26,12 +26,9 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -52,8 +49,6 @@
             ReferencedContainer = "container:YYCache.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"
diff --git a/YYCache/YYCache.m b/YYCache/YYCache.m
index e6cdcba..501fa10 100644
--- a/YYCache/YYCache.m
+++ b/YYCache/YYCache.m
@@ -86,8 +86,8 @@ - (void)objectForKey:(NSString *)key withBlock:(void (^)(NSString *key, id<NSCod
         });
     } else {
         [_diskCache objectForKey:key withBlock:^(NSString *key, id<NSCoding> object) {
-            if (object && ![_memoryCache objectForKey:key]) {
-                [_memoryCache setObject:object forKey:key];
+            if (object && ![self->_memoryCache objectForKey:key]) {
+                [self->_memoryCache setObject:object forKey:key];
             }
             block(key, object);
         }];
diff --git a/YYCache/YYDiskCache.m b/YYCache/YYDiskCache.m
index 735cc5d..528c906 100644
--- a/YYCache/YYDiskCache.m
+++ b/YYCache/YYDiskCache.m
@@ -343,7 +343,7 @@ - (void)removeAllObjectsWithProgressBlock:(void(^)(int removedCount, int totalCo
             return;
         }
         Lock();
-        [_kv removeAllItemsWithProgressBlock:progress endBlock:end];
+        [self->_kv removeAllItemsWithProgressBlock:progress endBlock:end];
         Unlock();
     });
 }
diff --git a/YYCache/YYMemoryCache.m b/YYCache/YYMemoryCache.m
index 9042d9b..57bfe75 100644
--- a/YYCache/YYMemoryCache.m
+++ b/YYCache/YYMemoryCache.m
@@ -436,7 +436,7 @@ - (void)setObject:(id)object forKey:(id)key withCost:(NSUInteger)cost {
     }
     if (_lru->_totalCost > _costLimit) {
         dispatch_async(_queue, ^{
-            [self trimToCost:_costLimit];
+            [self trimToCost:self->_costLimit];
         });
     }
     if (_lru->_totalCount > _countLimit) {