Can't extract /system/app/PrebuiltGmail/oat/arm64/PrebuiltGmail.vdex in Android 8.1, LGE Nexus 5X

[Lonelyxin]

In LGE Nexus 5X, Android 8.1, the system app Gmail (path: /system/app/PrebuiltGmail/oat/arm64/PrebuiltGmail.vdex), can not be extracted.
error info:
[ERROR] Unexpected checksum (905cd253 vs b2a857d4) - failed to unquicken Dex file
[ERROR] Failed to process Dex files - skipping 'PrebuiltGmail.vdex'

[Lonelyxin]

Gmail file zip as below.

PrebuiltGmail.zip

[ale8530]

You have try use option --ignore-crc-error?

[anestisb]

@Lonelyxin check #3 for more information on why you noticed this error in some apps

[Lonelyxin]

@anestisb @ale8530 Thanks !
use option --ignore-crc-error, vdex can be extracted. And the smali file is correct.
Thanks a lot!