I got this error when code my Android app:

I do nothing to this strings.xml file.
Can anyone fix this error?
I do refresh and clean but nothing change.
Thanks.
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As per your Comment. Here i post my answer. For this problem. Try below steps –
First just remove the project from your workspace.
And, after just import that project again into your work-space.
Sometimes, it happened for me. I tried to do this way. It works.
Hope this helps you.