java.lang.ExceptionInInitializerError

[snowdream]

02-19 05:54:57.441 25749-25749/? W/art: Unexpected CPU variant for X86 using defaults: x86
02-19 05:54:57.590 25749-25749/com.github.snowdream.toybricks.app W/System: ClassLoader referenced unknown path: /data/app/com.github.snowdream.toybricks.app-1/lib/x86
02-19 05:54:57.607 25749-25749/com.github.snowdream.toybricks.app D/AndroidRuntime: Shutting down VM
02-19 05:54:57.607 25749-25749/com.github.snowdream.toybricks.app E/AndroidRuntime: FATAL EXCEPTION: main
                                                                                    Process: com.github.snowdream.toybricks.app, PID: 25749
                                                                                    java.lang.ExceptionInInitializerError
                                                                                        at com.github.snowdream.toybricks.a.a(Unknown Source)
                                                                                        at com.github.snowdream.toybricks.app.MainActivity.onCreate(Unknown Source)
                                                                                        at android.app.Activity.performCreate(Activity.java:6664)
                                                                                        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
                                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
                                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
                                                                                        at android.app.ActivityThread.-wrap12(ActivityThread.java)
                                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
                                                                                        at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                                        at android.os.Looper.loop(Looper.java:154)
                                                                                        at android.app.ActivityThread.main(ActivityThread.java:6077)
                                                                                        at java.lang.reflect.Method.invoke(Native Method)
                                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
                                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
                                                                                     Caused by: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1
                                                                                        at java.lang.String.substring(String.java:1931)
                                                                                        at com.github.snowdream.toybricks.a.a.a.a(Unknown Source)
                                                                                        at com.github.snowdream.toybricks.a.a.a.a(Unknown Source)
                                                                                        at com.github.snowdream.toybricks.a.<clinit>(Unknown Source)
                                                                                        at com.github.snowdream.toybricks.a.a(Unknown Source) 
                                                                                        at com.github.snowdream.toybricks.app.MainActivity.onCreate(Unknown Source) 
                                                                                        at android.app.Activity.performCreate(Activity.java:6664) 
                                                                                        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) 
                                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599) 
                                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) 
                                                                                        at android.app.ActivityThread.-wrap12(ActivityThread.java) 
                                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460) 
                                                                                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                                        at android.os.Looper.loop(Looper.java:154) 
                                                                                        at android.app.ActivityThread.main(ActivityThread.java:6077) 
                                                                                        at java.lang.reflect.Method.invoke(Native Method) 
                                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
                                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)