采用webapp开发模式，第一次进入页面没问题，第二次进入就会报类似这样的错误

018-06-19 11:05:47.502411+0800 EJPMuiPlugInManager_Example[25714:1035914] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSPathStore2 safeAreaInsets]: unrecognized selector sent to instance 0x7ff87a700110'
First throw call stack:
(
0 CoreFoundation 0x0000000102a4412b exceptionPreprocess + 171
1 libobjc.A.dylib 0x0000000108caaf41 objc_exception_throw + 48
2 CoreFoundation 0x0000000102ac5024 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00000001029c6f78 __forwarding + 1432
4 CoreFoundation 0x0000000102a57be8 forwarding_prep_1_ + 120
5 EJPMuiPlugInManager_Example 0x0000000100503613 +[PDRCore rootViewEdgeInsets] + 70
6 EJPMuiPlugInManager_Example 0x000000010051cf78 -[PDRCoreAppWindow getStatusBarHeight] + 35
7 EJPMuiPlugInManager_Example 0x000000010051d09b -[PDRCoreAppWindow getFrameLayerFrame] + 104
8 EJPMuiPlugInManager_Example 0x000000010051cc81 -[PDRCoreAppWindow initWithFrame:withContext:] + 252
9 EJPMuiPlugInManager_Example 0x00000001005289c9 -[PDRCoreApp createAppWindow] + 253
10 EJPMuiPlugInManager_Example 0x000000010052c667 -[PDRCoreApp startAfterLoad] + 187
11 EJPMuiPlugInManager_Example 0x0000000100519717 -[PDRCoreAppManager openAppAtLocation:withIndexPath:withArgs:withDelegate:] + 324
12 EJPMuiPlugInManager_Example 0x0000000100345bed -[EJPMuiViewController loadPandroaProjectFile:pArgus:] + 442
13 EJPMuiPlugInManager_Example 0x0000000100345609 -[EJPMuiViewController start5pEngineAsWidget] + 232
14 EJPMuiPlugInManager_Example 0x0000000100345512 -[EJPMuiViewController viewDidLoad] + 157
15 UIKit 0x00000001064fe46c -[UIViewController loadViewIfRequired] + 1235
16 UIKit 0x00000001064fe8b9 -[UIViewController view] + 27
17 UIKit 0x000000010653094a -[UINavigationController _startCustomTransition:] + 954
18 UIKit 0x00000001065473b4 -[UINavigationController _startDeferredTransitionIfNeeded:] + 686
19 UIKit 0x00000001065486d3 -[UINavigationController viewWillLayoutSubviews] + 150
20 UIKit 0x00000001067a34e2 -[UILayoutContainerView layoutSubviews] + 231
21 UIKit 0x0000000106427a6d -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1439
22 QuartzCore 0x0000000105fe161c -[CALayer layoutSublayers] + 159
23 QuartzCore 0x0000000105fe57ad _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 401
24 QuartzCore 0x0000000105f6c86c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 364
25 QuartzCore 0x0000000105f99946 _ZN2CA11Transaction6commitEv + 500
26 UIKit 0x00000001063507ee _UIApplicationFlushRunLoopCATransactionIfTooLate + 167
27 UIKit 0x0000000106cc1a1b handleEventQueueInternal + 6894
28 CoreFoundation 0x00000001029e7101 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
29 CoreFoundation 0x0000000102a86f71 CFRunLoopDoSource0 + 81
30 CoreFoundation 0x00000001029cba19 CFRunLoopDoSources0 + 185
31 CoreFoundation 0x00000001029cafff __CFRunLoopRun + 1279
32 CoreFoundation 0x00000001029ca889 CFRunLoopRunSpecific + 409
33 GraphicsServices 0x000000010b48f9c6 GSEventRunModal + 62
34 UIKit 0x00000001063565d6 UIApplicationMain + 159
35 EJPMuiPlugInManager_Example 0x0000000100316ec8 main + 80
36 libdyld.dylib 0x0000000109e98d81 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException