However **all these errors are only false-alarms**!
To help Eclipse to understand that there are no any errors choose OpenCV library in :guilabel:`Package Explorer` (left mouse click) and press :kbd:`F5` button on your keyboard. Then choose any sample (except first samples in *Tutorial Base* and *Tutorial Advanced*) and also press :kbd:`F5`.
+
+ In some cases these errors disappear after :menuselection:`Project --> Clean... --> Clean all --> OK`.
Sometimes more advanced manipulations are needed:
:alt: Updating target
:align: center
- * Sometimes a project needs fixing its project properties. After right click on any project select :guilabel:`Android Tools` and then :guilabel:`Fix Project Properties` in sub-menu:
-
- .. image:: images/eclipse_8b_fix_props.png
- :alt: Fixing project properties
- :align: center
-
After this manipulation Eclipse will rebuild your workspace and error icons will disappear one after another:
.. image:: images/eclipse_9_errors_dissapearing.png