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I wanted to get database file from the emulator. So, I tried to change the permission of package folder using adb shell. When I use the below command:

adb shell su -c chmod 777 /data/data/com.mypackage.test

It always returns: 

Chmod: need 2 arguments

I have changed permission some days ago using above command. But recently I'm always getting the above warning. I have searched a lot and found large information regarding using above command but no one mentioned about this warning issue.

Alex P.
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Patriotic
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2 Answers2

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I have overcome this issue instead of running adb shell su -c "chmod 777 /data", I run the adb shell first and then the following command : su -c "chmod 777 /data".

enter image description here

Patriotic
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  • I have a same problem please check [link](https://stackoverflow.com/questions/56628647/android-room-database-file-is-invalid-file-format-in-db-browser) – milad salimi Jun 17 '19 at 10:36
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I have overcome this issue ： adb shell su -c 'chmod 777 /data/data/com.mypackage.test'

KONGLZ
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