Choose Properties. But they aren't. erreur sur l’accessibilité à un package - Eclipse Java the package is not accessible eclipse : 3: Use the @Scheduled annotation to instruct Quarkus to run this method every 10 seconds provided a worker thread is available (Quarkus is using 10 worker threads for the scheduler). JavaFX packages are not accessible : learnprogramming - reddit To resolve the “The package java.awt is not accessible” error, simply add Libraries in the following ways. The package java.swing is not accessible. Nope. "the package javafx is not accessible". Your code probably has two issues. First, the import statement is wrong since in Java you cannot add a package itself, but all classes of a package as follows (note .*; at the end): import org.apache.commons.math4.linear.*; If so, note that posting screenshots of code is against r/learnprogramming 's Posting Guidelines (section Formatting Code ): please edit your post to use one of the approved ways of formatting code.