Unable to clean project in Android Studio

Question

OS version: Ubuntu 14.04 LTE 64 Bit

Java JRE/JDK version: Oracle JDK 1.8.0_11

Project directory is on a NTFS based drive.

Whenever I try to clean my

Answer 1

Thanks to Gal's answer (https://stackoverflow.com/a/39904628/2870404).

In windows, using Windows file explorer,

1. right-click on the directory,
2. click properties on the context menu that will appear,
3. then uncheck the "Read Only" attribute.
4. After that, click the "Apply" to apply changes.