Opencv not recognizing java.util

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Hello everybody, I am new with android and OpenCV projects. I need help to sep up the OpenCV, i did everything what is on the page: http://docs.opencv.org/doc/tutorials/introduction/android_binary_package/O4A_SDK.html.

But, the OpenCV Library project isn`t recognizing the import java.util. What's wrong?

If I create a java project it works well.