code signing error in applied only, Xcode runs simulator

I am able to run the projects in xcode but get the following errors in appcode. I am new to the ios programming and am only developing/debugging locally so not enrolled in the ios development programming. When i hit run in appcode i am expecting the ios simulator to run just like in xocde. I am not sure what diagnostics information is needed to solve this other than the error code. my current signing is set to IPhone Developer as set by xcode's project settings. I would appriciated the help in resolving this, thank you.

Error:Code Sign error: No code signing identities found: No valid signing identities (i.e. certificate and private key pair) matching the team ID “(null)” were found.
Error:CodeSign error: code signing is required for product type 'Application' in SDK 'iOS 8.1'