apktool反编译后什么都没有改,再重新打包后出现报错现象，求解

反编译时出现cant find 9patch chunk in file renaming it to *.png 的错误
打包时则出现 ERROR: 9-patch image D:\apktool\douyin\res\drawable-xxhdpi\ays.9.png malformed.
W: No marked region found along edge.
W: Found along top edge.
W: ERROR: Failure processing PNG image D:\apktool\douyin\res\drawable-xxhdpi\ays.9.png
W: fakeLogOpen(/dev/log_crash) failed