id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 2169,"""Please correct the error below."" With No Shown Errors",tyson@…,anonymous,"When a class has a field that isn't shown in the admin interface but must not be blank, it's impossible to add a new one. You get a cryptic ""Please correct the error below."" message with no shown errors. The error message should probably say something about a hidden field. Here's a sample model to reproduce this bug: {{{ class Foo(models.Model): title = models.CharField(maxlength=100) url = models.URLField() class Admin: fields = ( (None, {'fields': ('title',)}), ) }}} ",defect,closed,contrib.admin,dev,normal,fixed,,,Unreviewed,0,0,0,0,0,0