ERROR: System.ArgumentException: Attempt to construct staged filesystem reference from absolute path (/xxxx/xxxx.uexp). Staged paths are always relative to the staging root.
と表示され、エラーで実行できない場合の対処。
前提に全ての準備ができている事が前提で突然エラーが表示されるようになった場合。
コマンドプロンプトを起動し以下を実行
Microsoft Windows [Version 10.0.18362.657] (c) 2019 Microsoft Corporation. All rights reserved. C:\Users\xxxx>adb shell 127|shell@hammerhead:/ $ ls -l drwxr-xr-x root root 1970-03-11 20:37 acct drwxrwx--- system cache 2020-03-05 13:00 cache lrwxrwxrwx root root 1970-01-01 09:00 charger -> /sbin/healthd dr-x------ root root 1970-03-11 20:37 config lrwxrwxrwx root root 1970-03-11 20:37 d -> /sys/kernel/debug drwxrwx--x system system 2020-03-05 13:27 data -rw-r--r-- root root 742 1970-01-01 09:00 default.prop drwxr-xr-x root root 2020-03-05 13:40 dev lrwxrwxrwx root root 1970-03-11 20:37 etc -> /system/etc -rw-r--r-- root root 21384 1970-01-01 09:00 file_contexts dr-xr-x--- system system 1970-01-01 09:00 firmware -rw-r----- root root 2857 1970-01-01 09:00 fstab.hammerhead lstat './init' failed: Permission denied -rwxr-x--- root root 852 1970-01-01 09:00 init.environ.rc -rwxr-x--- root root 78 1970-01-01 09:00 init.hammerhead.diag.rc -rwxr-x--- root root 15994 1970-01-01 09:00 init.hammerhead.rc -rwxr-x--- root root 6534 1970-01-01 09:00 init.hammerhead.usb.rc -rwxr-x--- root root 26830 1970-01-01 09:00 init.rc -rwxr-x--- root root 1921 1970-01-01 09:00 init.trace.rc -rwxr-x--- root root 9283 1970-01-01 09:00 init.usb.configfs.rc -rwxr-x--- root root 5339 1970-01-01 09:00 init.usb.rc -rwxr-x--- root root 342 1970-01-01 09:00 init.zygote32.rc drwxr-xr-x root system 1970-03-11 20:37 mnt drwxr-xr-x root root 1970-01-01 09:00 oem lstat './persist' failed: Permission denied dr-xr-xr-x root root 1970-01-01 09:00 proc -rw-r--r-- root root 3361 1970-01-01 09:00 property_contexts drwxr-xr-x root root 1970-01-01 09:00 res drwx------ root root 2016-09-20 07:13 root drwxr-x--- root root 1970-01-01 09:00 sbin lrwxrwxrwx root root 1970-03-11 20:37 sdcard -> /storage/self/primary -rw-r--r-- root root 596 1970-01-01 09:00 seapp_contexts -rw-r--r-- root root 63 1970-01-01 09:00 selinux_version -rw-r--r-- root root 151598 1970-01-01 09:00 sepolicy -rw-r--r-- root root 9769 1970-01-01 09:00 service_contexts drwxr-xr-x root root 2020-03-05 08:54 storage dr-xr-xr-x root root 1970-03-11 20:37 sys drwxr-xr-x root root 1970-01-16 08:26 system -rw-r--r-- root root 2204 1970-01-01 09:00 ueventd.hammerhead.rc -rw-r--r-- root root 4587 1970-01-01 09:00 ueventd.rc lrwxrwxrwx root root 1970-03-11 20:37 vendor -> /system/vendor shell@hammerhead:/ $ cd sdcard shell@hammerhead:/sdcard $ ls -l drwxrwx--x root sdcard_rw 2019-08-09 21:05 Android drwxrwx--x root sdcard_rw 2019-12-27 07:07 DCIM drwxrwx--x root sdcard_rw 2020-01-04 00:47 Download drwxrwx--x root sdcard_rw 2020-03-01 13:16 Pictures drwxrwx--x root sdcard_rw 2020-03-04 13:41 UE4Game drwxrwx--x root sdcard_rw 2019-08-25 14:57 gooblog drwxrwx--x root sdcard_rw 2020-02-26 07:47 jp.co.yahoo.premium.yomihodai drwxrwx--x root sdcard_rw 2020-02-29 10:11 ぼかし丸 shell@hammerhead:/sdcard $ cd UE4Game shell@hammerhead:/sdcard/UE4Game $ ls -l drwxrwx--x root sdcard_rw 2020-02-28 13:29 AndroidNexusGhost drwxrwx--x root sdcard_rw 2020-02-27 11:43 GPSinfo drwxrwx--x root sdcard_rw 2020-03-05 08:52 My415Project2 drwxrwx--x root sdcard_rw 2020-02-27 16:48 Widgit415 drwxrwx--x root sdcard_rw 2020-02-18 10:55 test shell@hammerhead:/sdcard/UE4Game $ rm -r My415Project2 shell@hammerhead:/sdcard/UE4Game $ ls -l drwxrwx--x root sdcard_rw 2020-02-28 13:29 AndroidNexusGhost drwxrwx--x root sdcard_rw 2020-02-27 11:43 GPSinfo drwxrwx--x root sdcard_rw 2020-02-27 16:48 Widgit415 drwxrwx--x root sdcard_rw 2020-02-18 10:55 test shell@hammerhead:/sdcard/UE4Game $
まず、
C:\Users\xxxx>adb shell
で、Androidのシェルを使えるようにします
127|shell@hammerhead:/ $ ls -l
で中身を見ます。で、中に`sdcard`を確認しここへ移動します
shell@hammerhead:/ $ cd sdcard
この中身を`ls -l`で確認。UE4Gameを確認して移動します
shell@hammerhead:/sdcard $ cd UE4Game
この中身を`ls -l`で確認。削除対象（更新対象）を確認し削除します
shell@hammerhead:/sdcard/UE4Game $ rm -r My415Project2
ここでは`My415Project2`が対象です。削除されたか`ls -l`で確認しておしまい。
これでエラーが解消されます