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Editorial Team
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Asked: 2026-06-10T03:44:49+00:00

I need help badly. I tried to to a clean in my android app

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I need help badly. I tried to to a clean in my android app Project>Clean. After doing this, All my classes started to have errors. It can’t detect the R in –> findViewById(R.id.heightVal); And it cannot locate some other files, xml ids and xmls. Any ideas?

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  1. Editorial Team

    I think you import android.R in your activity . If it is the case then delete that line and clean project again.

    R is an automatically generated class that holds the constants used to
    identify your resources. If you don’t have an R.java file (it would be
    gen/eu.mauriziopz.gps/R.java in Eclipse with the 1.5 SDK) I would
    recommend closing and reopening your project or going to Project >
    Build all (and selecting “Build Automatically”). If that doesn’t work than try making a new
    project.

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