diff --git a/JJException.podspec b/JJException.podspec
index 5a8f8c0..4997aca 100644
--- a/JJException.podspec
+++ b/JJException.podspec
@@ -16,7 +16,7 @@ Pod::Spec.new do |s|
   #
 
   s.name         = "JJException"
-  s.version      = "0.1.6"
+  s.version      = "0.1.7"
   s.summary      = "Handle the objective-c crash exception."
 
   # This description is used to generate tags and improve search results.
diff --git a/JJException.xcodeproj/project.xcworkspace/xcuserdata/jezz.xcuserdatad/UserInterfaceState.xcuserstate b/JJException.xcodeproj/project.xcworkspace/xcuserdata/jezz.xcuserdatad/UserInterfaceState.xcuserstate
index 8dd223f..c3d38c6 100644
Binary files a/JJException.xcodeproj/project.xcworkspace/xcuserdata/jezz.xcuserdatad/UserInterfaceState.xcuserstate and b/JJException.xcodeproj/project.xcworkspace/xcuserdata/jezz.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/JJException.xcodeproj/xcuserdata/jezz.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/JJException.xcodeproj/xcuserdata/jezz.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
index fe2b454..a86d1b6 100644
--- a/JJException.xcodeproj/xcuserdata/jezz.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
+++ b/JJException.xcodeproj/xcuserdata/jezz.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -2,4 +2,88 @@
 <Bucket
    type = "1"
    version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.AddressBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            symbolName = "*0x108e21965">
+            <Locations>
+               <Location
+                  shouldBeEnabled = "Yes"
+                  ignoreCount = "0"
+                  continueAfterRunningActions = "No"
+                  usesParentBreakpointCondition = "Yes"
+                  offsetFromSymbolStart = "0">
+               </Location>
+            </Locations>
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "JJException/Source/MRC/NSObject+KVOCrash.m"
+            timestampString = "564488427.585709"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "133"
+            endingLineNumber = "133"
+            landmarkName = "-clearKVOData"
+            landmarkType = "7">
+            <Locations>
+               <Location
+                  shouldBeEnabled = "Yes"
+                  ignoreCount = "0"
+                  continueAfterRunningActions = "No"
+                  symbolName = "-[KVOObjectContainer clearKVOData]"
+                  moduleName = "JJException"
+                  usesParentBreakpointCondition = "Yes"
+                  urlString = "file:///Users/jezz/git_project/JJExceptionGithub/JJException/Source/MRC/NSObject+KVOCrash.m"
+                  timestampString = "564488398.348398"
+                  startingColumnNumber = "9223372036854775807"
+                  endingColumnNumber = "9223372036854775807"
+                  startingLineNumber = "133"
+                  endingLineNumber = "133"
+                  offsetFromSymbolStart = "55">
+               </Location>
+               <Location
+                  shouldBeEnabled = "Yes"
+                  ignoreCount = "0"
+                  continueAfterRunningActions = "No"
+                  symbolName = "-[KVOObjectContainer clearKVOData]"
+                  moduleName = "JJException"
+                  usesParentBreakpointCondition = "Yes"
+                  urlString = "file:///Users/jezz/git_project/JJExceptionGithub/JJException/Source/MRC/NSObject+KVOCrash.m"
+                  timestampString = "564488398.350692"
+                  startingColumnNumber = "9223372036854775807"
+                  endingColumnNumber = "9223372036854775807"
+                  startingLineNumber = "133"
+                  endingLineNumber = "133"
+                  offsetFromSymbolStart = "65">
+               </Location>
+            </Locations>
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "JJException/Source/MRC/NSObject+KVOCrash.m"
+            timestampString = "564488427.587878"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "244"
+            endingLineNumber = "244"
+            landmarkName = "-kvo_hookDealloc"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
 </Bucket>
diff --git a/JJException/PushViewController.m b/JJException/PushViewController.m
index 321ff95..8b98693 100644
--- a/JJException/PushViewController.m
+++ b/JJException/PushViewController.m
@@ -20,6 +20,10 @@ - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(N
     
 }
 
+- (void)dealloc{
+    NSLog(@"dealloc");
+}
+
 @end
 
 @interface PushViewController (){
@@ -32,6 +36,8 @@ @interface PushViewController (){
 
 @property(nonatomic,readwrite,copy)NSString* test1;
 
+@property(nonatomic,readwrite,copy)NSString* demoString1;
+
 @end
 
 @implementation PushViewController
@@ -47,8 +53,12 @@ - (void)viewDidLoad {
     [self testKVO];
     
     [self testNotification];
+    
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        _kvoObserver = nil;
+    });
 
-    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(6 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
         [self dismissViewControllerAnimated:YES completion:nil];
     });