i am uploading a application on appstore,when i upload the build in Applicationloader, i face an error given as below. please give me the detail to solve this problem.
"Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate."
So... are you asking what that error message means? It means you need a valid distribution certificate signed by Apple that you can use to sign your binary. You can get that by logging into the iOS Dev Center and using the iOS Provisioning Portal to create the certificate.
Go to the iOS Provisioning Portal, provisioning menu, distribution tab and be sure that you create and use the certificate with the 'app store' option active. The certificate for uploading to the app store is different to the certificate you use for add-hoc distribution.
Then, install the distribution provisioning profile on xcode, and be sure that you compile your build with that certificate.
Hope this helps.