I am making an application of reading a sms message using Qt Mobility for Symbian on Carbide, I made the program now want to test it's working on device, for that i made it's sis and sisx file and now deploying in nokia C5 device.
For it's proper execution on device i installed Qt installer and than Qt mobility on device and as these two files are properly installed,after that when i was installing my application, some error is coming and error is:
"Certificate error:
Contact the application supplier"
can anyone help me in resolving this problem????

Thanks in advance