# Error when changing default language **URL:** \ **Category:** Technical Support\ **Created:** [March 25, 2022, 9:54am UTC](https://pdfjs.community/t/error-when-changing-default-language/1499 "2022-03-25T09:54:41Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![system](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/ffbcd25c7d423db8d5acd5db201c272f4db306dd.png) [@system](https://pdfjs.community/u/system)\ **Post date:** [March 25, 2022, 9:54am UTC](https://pdfjs.community/t/error-when-changing-default-language/1499/3 "2022-03-25T09:54:46Z")
**Hello, I’m Ron, an automated tech support bot 🤖** While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages: Guides: - [Samples](https://pdfjs.express/documentation/viewer/samples) - [UI & toolbar customization sample](https://pdfjs.express/documentation/ui-customization/samples) - [Integrating PDF.js Express Plus into a new Angular project - Sample overview](https://pdfjs.express/documentation/get-started/angular/new-project#sample-overview) APIs: - [UI - setLanguage(language)](https://pdfjs.express/api/UI.html#.setLanguage__anchor) - [UI.Header - getItems()](https://pdfjs.express/api/UI.Header.html#getItems__anchor) - [Core.DocumentViewer - setDefaultPageColor(color)](https://pdfjs.express/api/Core.DocumentViewer.html#setDefaultPageColor__anchor) Forums: - [Am getting this error when loading WebViewer with Vue application](https://pdfjs.community/t/am-getting-this-error-when-loading-webviewer-with-vue-application/1319/1) - [Is there any CDN url for PDFJS express library](https://pdfjs.community/t/is-there-any-cdn-url-for-pdfjs-express-library/910/15) - [Error when loading xfdf annotations](https://pdfjs.community/t/error-when-loading-xfdf-annotations/1380/1) --- _[View the full topic](https://pdfjs.community/t/error-when-changing-default-language/1499)._