java - Lose contact with resources - why -

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im developing in eclipse 5 activities, loose contact resources.

have experienced phenomenon , knows it? have tried cleaning project no luck

update: managed resolve issues deleting project , importing older version, worked. copying , pasting new , damaged version old version..

check edited resources errors (e.g. malformed xml in layout file changed). if there 1 error, whole resource generation stopped , can't reference anything.


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