lost my iphone development certificates and private key

Question

i lost the certificate the private key everything

i did everything from scratch as per the manual that is i started with the certificate process till the end but still i have the same problem when i choose to install the application into the iphone device

here is the problem message when i click into Any iphone OS device in the info icon

the name ("common name") of a valid code-signing certificate in a keychain within your keychain pah. A missing or invalid certificate will cause a build error. [CODE_SIGN_IDENTITY]

please ur assitance Many thanks

Answer 1

Have you added the Apple Worldwide Developer Relations Authority Certificate?

Answer 2

login to the iphone developer portal all the certificates/profiles can be found there or if in need be regenerated

sam

Answer 3

The story from the begining: I lost entries from keychain for som reason, i tried to import from backup .p12 and .cert files i got a different seed id than the one i used to work with before.

i sent the problem to forums, i got in (stack overflow) that i shoul delete everything from keychain and prov. portal and ask again for (request certificate from a certified authority CA) and handle each step again as per the manual. i did so but what i get is : Distribution provisioning failed and was not accepted in the xcode organizer. and the development provsioning was accepted BUT when i try to specify the development provisioning profile in the application info icon in xcode (i) what i got is the error mentioned in my question [[[ the name ("common name") of a valid code-signing certificate in a keychain within your keychain pah. A missing or invalid certificate will cause a build error. [CODE_SIGN_IDENTITY] ]]]

now i am lost and stuck and i dont know what to do to get back on the trail.