A little question...

[mywonson]

Hello my friend! Nice to communicate with you.Recently I am studying your youpk and I think it's really interesting and talented.But unfortunately,I also met some problems and I can't resolve it even tried every google and baidu.The following step is what I operated:
1.download the aosp source code of android-7.1.2_r33.
2.insert youpk modified code.
3.make aosp then get boot.img and system.img in out directory.
4.fastboot flash boot boot.img & fastboot flash system system.img.
5.fastboot reboot
But then I got the following error from android studio logcat window and the device stuck at android logo interface:
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] Internal Error: non-empty local reference table
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] local reference table dump:
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] Last 1 entries (of 1):
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] 0: 0x12c011c0 java.lang.Class<cn.youlor.Unpacker>
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] Summary:
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175] 1 of java.lang.Class
1970-03-01 04:31:24.984 18392-18392/? A/art: art/runtime/indirect_reference_table.cc:175]
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] Runtime aborting...
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] Aborting thread:
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] "main" prio=5 tid=1 Runnable
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] | group="" sCount=0 dsCount=0 obj=0x12c310d0 self=0xe8a85400
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] | sysTid=18392 nice=0 cgrp=default sched=0/0 handle=0xeb701534
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] | state=R schedstat=( 3247957383 216235988 288 ) utm=209 stm=115 core=1 HZ=100
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] | stack=0xff543000-0xff545000 stackSize=8MB
1970-03-01 04:31:25.045 18392-18392/? A/art: art/runtime/runtime.cc:423] | held mutexes= "abort lock" "mutator lock"(shared held)
I really don't know how to resolve it.I will appreciate it very much if you can help me.Thank you.