Home Android Studio: error: invalid demon and "R" symbol cannot resolved
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Android Studio: error: invalid demon and "R" symbol cannot resolved

user592
1#
user592 Published in May 27, 2018, 3:29 am

I have made my first simple project and it won't work. It says "error: invalid dimen". dimens.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <dimen name="activity_vertical_margin">activity_vertical_margin</dimen>
    <dimen name="activity_horizontal_margin">activity_horizontal_margin</dimen>
</resources> 

Furthermore in my .java fails it says "cannot resolve symbol 'R'".

Clean project, synch with gradle and rebuild project didn't work.

How can i solve these errors?

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