Javax包不存在

Question

there is an error in all my javax header file "package javax. does not exist" here is an image.

Answer 1

Download one of the jar file from the following link and store it in your local machine :

http://www.jarfinder.com/index.php/java/info/javax.obex.Operation

Now follow the given steps in the following link to add that jar file into your project.

http://gpraveenkumar.wordpress.com/2009/06/17/abc-to-import-a-jar-file-in-netbeans-6-5/

This should resolved your errors.

Answer 2

Try to add the library Persistence (JPA 2.1) in your folder Libraries .
To do this: Left-click Libraries->Add Library...->select Persistence (JPA 2.1)

Answer 3

It is easy, I was facing the same issue and fixed in this way:

1. File -> New File -> Persistence -> New Persistence UNIT

Here you need to select your desire package from drowpdown list and click ok. It will add EclipsLink in library folder which has the package javax.

Answer 4

Netbeans 6.9.1 already has Java ME SDK 3.0. Just check the Emulator Platform in the properties of your application. If there is no emulator platform just download the sun java toolkit or Java ME SDK 3.0 and then integrate with Java platform on your netbeans IDE.

Answer 5

The error message says: package javax.obex does not exist. This means you are missing a library (JAR file). Add the JAR file to your project. In Eclipse you can do that by right-clicking the project, selecting Properties, then Java Build Path, Libraries. Click "Add JARs" or "Add External JARs" to add the relevant JAR file to your project.

This JAR file most likely has something to do with bluetooth. You can download an interface JAR from here , but you most likely need an implementation JAR also.

Answer 6

您可能没有正确设置项目库：看起来您已将源jar文件添加到项目中，而不是具有实际类文件的jar。