Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Okay so I made a package and submitted it to Ubuntu App Developer. It does not install any files directly, but does depend on Qt framework. The License Key system Ubuntu provides says it will look for it in the specified file. How do I use this system. How do I install a file to that place? What file do I install?

share|improve this question
If you are not installing any files directly what have you packaged? – zoopster May 22 '13 at 10:37
ok I worded that wrong. It only installs the actually file, a license, a read-me and the qt libs it needs. – Zach May 28 '13 at 14:38

The license key infrastructure system installs a "key file" into a specific location relative to the application binary or in the users home directory depending on how you specify the location. The key file can be anything, but is usually something that your application is looking for to enable the application.

More detail can be found at

When a user makes a purchase the key is installed with the package files and alternatively is emailed to the user along with the subscription details.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.