First of all I’ve been using Android studio for quite years but this has never happened before.
It seems like android studio’s inner ArrayList class has vanished out of a sudden. I can’t use ArrayList. It always says Can’t find symbol ArrayList
I’ve cleaned rebuild and even invalidated caches and restarted several times but all in vain.
package dev.moutamid.testapp;
import java.util.ArrayList; //<--- this gives error
public class FragmentDashboard extends Fragment {
private ArrayList<refUser> refUsersList = new ArrayList<>(); //<--- and this line
}
My android studio is up to date. I then opened a new project and tried to use ArrayList but it was still not showing. Feels like there’s nothing related to ArrayList in studio.
Yesterday I got BSOD (Blue screen of death of Windows) and today it’s happening. I’m using git repository to backup my project.
What could be the solution? I think Git has deleted ArrayList class because it already had corrupted several files before. I got luck due to the backups.
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Answer
Well this is really weird. Would suggest you to try the following:
- Check the jdk in android studio and check the path. If you still facing this problem then install a fresh jdk which you download online and put in the new path and try.
- If this is also not working, back up all files and reinstall Android studio. Uninstall the current copy and install a fresh one.
- Well since you have had a Blue screen issue, would highly recommend to do a fresh install of windows. You haven’t specified which Windows version you using so I am assuming you are using Windows 10. This link should help you out for Windows 10 : https://support.microsoft.com/en-in/help/4000735/windows-10-reinstall
- And please keep taking a backup of whatever you need regularly.