Hi everyone,
I'm trying to install the new update from 2.14 to 2.17, but I have a mistake. I have attached a jpg.
The massage said:

Found an incomplete installation in this directory.
You can continue the installation or exit the installer and uninstall.
Note that depending on the underlying problem, the installation may not work. In this case, you will need to uninstall the application.

Some one can help me to resolve this problem?

Thanks.