Reply To: Cannot set property 'en_US' of undefined

• adamwalter

• June 21, 2016 at 6:58 am

I have the same error on my post editor, media library, widgets editor, and user editor pages. We are not using The Events Calendar, but here’s a list of our plugins:

| advanced-custom-fields-pro    | inactive | none      | 5.3.9.1 |
| advanced-excerpt              | inactive | none      | 4.2.3   |
| bluetrait-event-viewer        | active   | none      | 2.0.2   |
| contact-form-7                | active   | available | 4.0.3   |
| custom-post-type-ui           | active   | none      | 1.3.5   |
| debug-bar                     | inactive | none      | 0.8.4   |
| debug-bar-extender            | inactive | none      | 0.5     |
| debug-bar-template-trace      | inactive | none      | 0.1.1   |
| disable-comments              | inactive | none      | 1.5     |
| formtools                     | inactive | none      | 1.1.0   |
| gravityforms                  | active   | none      | 1.9.19  |
| gravityforms-hubspot          | active   | none      | 2.3.3   |
| hubspot                       | active   | none      | 1.9.4   |
| post-type-library             | active   | none      | 2.0     |
| nextgen-gallery               | inactive | available | 2.0.66  |
| regenerate-thumbnails         | active   | none      | 2.2.6   |
| rewrite-rules-inspector       | active   | none      | 1.2.1   |
| simple-page-ordering          | inactive | none      | 2.2.4   |
| term-menu-order               | active   | none      | 0.4     |
| user-role-editor              | active   | none      | 4.25.2  |
| wordpress-importer            | active   | none      | 0.6.1   |
| wordpress-seo                 | active   | available | 1.5.3.3 |
| wp-migrate-db-pro             | active   | none      | 1.6     |
| wp-migrate-db-pro-media-files | active   | none      | 1.4.4   |