Migrating Old Library Projects
Since former Library projects are not available in the Developer Studio, you have to transform the old Library projects into Enterprise Application projects. This procedure describes the steps to do it.
More information
about the analogous case with Development Component projects:
Migrating J2EE Library
DC to Enterprise Application DC
You have a Library project created with an older version of the SAP NetWeaver Developer Studio.
...
1. Import the existing Library project in the Developer Studio (using File → Import).
2. Create an initially empty Enterprise Application project.
3. Select the project in the Project Explorer.
4. In the context menu, choose Properties → J2EE Module Dependencies.
5. Choose Add JARs and select the JAR file archiving the Library project.
6. Choose OK.
7. Redirect all previous references to the old libraries to the new Enterprise application EAR
When the Enterprise Application project is built, the library JAR file will be added to the application EAR file.