i have developed two project in Symbian "pro1 and pro2".
and download "developercertificate.cer and developercertificate.key".
now i have generate two sisx file. (pro1.sisx by pro1 and pro2.sisx by pro2) .
when i install pro1.sisx, this install properly and working fine.
But when i am going to install pro2.sisx, then a msg is shown on device "unable to install, constrained by the certificate".
i have try to solve this issue by Google.i found that this issue is because of UID
then i change UID of pro2, by replacing current uid by new uid.
and try again but again i got same msg .
please show me the way to solve this issue.