Notice: Undefined index: name errors caused by .info files in vendor sub directory

Once I run bundle install and the vendor directory is created and populated, I get the following errors when editing the theme settings. I can remove the vendor directory and they go away, but then the watch command doesn't work. Running bundle install again restores the vendor directory and watch begins to work, but the errors return. From my research, I believe this is due to Drupal scanning the .info files in all sub directories of a theme and finding one that isn't formatted properly.

Notice: Undefined index: name in system_sort_modules_by_info_name() (line 949 of modules/system/system.admin.inc).
Warning: uasort(): Array was modified by the user comparison function in system_themes_page() (line 139 of modules/system/system.admin.inc).
Notice: Undefined index: name in system_themes_page() (line 148 of modules/system/system.admin.inc).
Notice: Undefined index: name in theme_system_themes_page() (line 2748 of modules/system/system.admin.inc).