title: Xcode, build failed with the example "hello world" with c++
body: <p>When looking at the errors i have two of them. They happens directly after i try to run the example code &quot;hello world&quot; and the program does not run.</p>
  <p>The first error is:
  The operation couldn’t be completed. Unable to log in with account 'xxx@hotmail.com'. The login details for account 'xxx@hotmail.com' were rejected.</p>
  <p>The second error is:
  No signing certificate &quot;Mac Development&quot; found: No &quot;Mac Development&quot; signing certificate matching team ID &quot;XXXXXXX&quot; with a private key was found.</p>
  <p>The xx and XX is of course censoring.
  This seems to be issues with the computer and certificates, how do i solve this?</p>