I simply added a jar library to project/libs
. The app is working very well.
I decided to change its location; I first deleted it, and added it again to the root of the project (instead of project/libs) . I also added it to the Java Build Path
But in this case, when running the app it shows a message saying "Unfortunately, app has stopped".
When I reinstated the jar library to its previous location The app is working.
How to change the location of jar library and get the app work?