Android Studio Java classes dont seemed linked to layout files -


i having issue can not link layout files java classes. importing code know worked project, , moved source code , associated layout xml files other project. (copy , paste)

is way link them back>

here example: 

setcontentview(r.layout.activity_camera_protocol_demo);

it can not resolve activity_camera_protocol_demo.

is fix this?

it text views , buttons ect on layout file.

go build --> rebuild project. solved me problems had.


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