This issue is related to ts() which is used in JS files and it's not working. The problem is that the system returns an error every time it encounters ts() saying that it is not a function.
I have updated CiviCRM to the latest version (4.7.12) for Drupal 7, and also updated Drupal to the latest version (7.51) of D7 and updated all required modules for Drupal and extensions for CiviCRM. But the CiviCRM Dashboard is not displaying any content or error. When I review the browser console I found following error:
Error: [$injector:modulerr] 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