-bash: /key: Read-only file system

[edoardop13]

I'm trying to use this script with xiaomi mi a2 and magisk, but when i do "adb -d shell "cat data/data/com.whatsapp/files/key" > $W2IOS/key" the terminal return the following error:
"-bash: /key: Read-only file system"

[Malkamali]

Use mixplorer if you have root on your device and find the key file from the app. copy it and send it to your mac into the whatsapp2ios directory.