混淆后软件报错！！求助


混淆后报错：
java.lang.ExceptionInInitializerError
        at com.a.a.c.t.<clinit>(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl.parser(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl.access$4(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl$2.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.NullPointerException
        at com.a.a.c.f.B.<init>(Unknown Source)
        at com.a.a.c.f.B.<clinit>(Unknown Source)
        ... 5 more
java.lang.NullPointerException
        at com.a.a.c.f.B.<init>(Unknown Source)
        at com.a.a.c.f.B.<clinit>(Unknown Source)
        at com.a.a.c.t.<clinit>(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl.parser(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl.access$4(Unknown Source)
        at com.jl.chinatiger.common.api.impl.TigerApiImpl$2.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:841)
我忽略了整个类，R文件，和jar包
-keep class com.jl.chinatiger.**
-libraryjars libs/android-support-v4.jar
-libraryjars libs/jackson-annotations-2.1.4.jar
-libraryjars libs/jackson-core-2.1.4.jar
-libraryjars libs/jackson-databind-2.1.4.jar
-libraryjars libs/libammsdk.jar
-libraryjars libs/UPPayAssistEx.jar
-keepclassmembers class **.R$* {
    public static <fields>;
}
可还是报这个错误！！！不混淆则没有错误啊。还有什么应该忽略的？？？？？？？混淆