I have published an application in the software center by uploading
tar.gz in an archive.
In the software center it is showing twice one with my application icon and one with default icon. how to solve this?
actually The problem is that in the Ubuntu we have application files and its .Desktop file. so when you search both the application file and .Desktop file of your application(for which you have not given any Icon) both are listing and neither one has
and one more thing , your issue is also bug in 12.04 but in 13.04.
Alvar are you on 64bit. If so you may find that one is the 64bit deb and the other is the 32bit binary. If this is the case the only thing you can do is provide Developer Portal with very specific 32 and 64bit debs. Other wise just leave it as is. People by default will click on the one with the image.