Crash in iOS8

[yangjunsss]

Hi, I get Crash log as below:

Crashed: com.apple.main-thread
SIGABRT ABORT at 0x00000001956cf270
raw
libsystem_kernel.dylib
__pthread_kill + 8
libsystem_c.dylib
basename
CoreGraphics
CG::Path::move_to_point(CGPoint const&, CGAffineTransform const*)
UIKit
+[UIBezierPath _continuousRoundedRectBezierPath:withRoundedCorners:cornerRadii:segments:smoothPillShapes:] +
UIKit
+[UIBezierPath _continuousRoundedRectBezierPath:withRoundedCorners:cornerRadius:segments:] +
SDSegmentedControl.m line 1316
-[SDStainView drawRect:]