--- title: Why does Copia say that I'm missing GSD files or Add-ons? description: How to resolve the "GSD/Add-On Installation Required" error --- [Skip to content](https://help.copia.io/knowledge/why-does-copia-say-that-im-missing-gsd-files#main-content) English Show submenu for translations [More support](https://help.copia.io/knowledge/kb-tickets/new?hsLang=en) ![](https://help.copia.io/hubfs/Logo_Hotdog_BlackWhite%20(1).svg) Open main navigation Close main navigation - English Show submenu for translations - [More support](https://help.copia.io/knowledge/kb-tickets/new) - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Copia Help Center](https://help.copia.io/knowledge?hsLang=en) 2. [Source Control FAQ](https://help.copia.io/knowledge/source-control-faq?hsLang=en) 3. [Source Control](https://help.copia.io/knowledge/source-control-faq?hsLang=en#source-control) # Why does Copia say that I'm missing GSD files or Add-ons? ## How to resolve the "GSD/Add-On Installation Required" error If your project contains add-ons or GSD files that are not installed on Copia's servers, they will initially need to be installed in order to provide a graphical display of the project and differences. Copia will alert you about this during your initial commit, and provide instructions for pushing your data and authorizing access to the project to install the required add-ons and GSD files to our servers. You will need to submit a [Support Request](https://www.copia.io/bugs) to our team indicating that the GSD/Add-on is missing, and then our team will install those files on our servers. In the meantime though, please feel free to continue committing to your repository. Your projects will render once the server has been updated. Our team will update you once the files have been installed. You can find more information about GSD/Add-ons in [our Documentation](https://docs.copia.io/docs/git-based-source-control/supported-vendors/siemens#filetypes-and-storage).  ![](https://192570923-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F4lSQNVI3DZ15V7kjkMCA%2Fuploads%2FurkFOsGpKZDdrLWnrikG%2FTIA_GSD_2.png?alt=media&token=ae3eccae-4c97-4232-8586-18b8bd6bb9a4)   Elements of the UI may have changed since the time of posting. For the most up-to-date information, refer to [our Documentation](http://docs.copia.io).   - [Getting Started](https://help.copia.io/knowledge/getting-started?hsLang=en#main-content) - [Sales Wiki](https://help.copia.io/knowledge/getting-started?hsLang=en#sales-wiki) - [Account Management](https://help.copia.io/knowledge/getting-started?hsLang=en#account-management) - [Customer Experience](https://help.copia.io/knowledge/getting-started?hsLang=en#customer-experience) - [Source Control FAQ](https://help.copia.io/knowledge/source-control-faq?hsLang=en#main-content) - [Web App](https://help.copia.io/knowledge/source-control-faq?hsLang=en#web-app) - [Git Questions](https://help.copia.io/knowledge/source-control-faq?hsLang=en#git-questions) - [Desktop App](https://help.copia.io/knowledge/source-control-faq?hsLang=en#desktop-app) - [Tutorials](https://help.copia.io/knowledge/source-control-faq?hsLang=en#tutorials) - [Best Practices](https://help.copia.io/knowledge/source-control-faq?hsLang=en#best-practices) - [Source Control](https://help.copia.io/knowledge/source-control-faq?hsLang=en#source-control) - [DeviceLink FAQ](https://help.copia.io/knowledge/devicelink-faq?hsLang=en#main-content) - [Siemens TIA Portal](https://help.copia.io/knowledge/devicelink-faq?hsLang=en#siemens-tia-portal) - [Agent](https://help.copia.io/knowledge/devicelink-faq?hsLang=en#agent) - [General](https://help.copia.io/knowledge/devicelink-faq?hsLang=en#general) - [Rockwell Studio 5000](https://help.copia.io/knowledge/devicelink-faq?hsLang=en#rockwell-studio-5000) [![Chill listening crop-3](https://help.copia.io/hs-fs/hubfs/Logo_Hotdog_BlackTeal-1.png?width=87&height=24&name=Logo_Hotdog_BlackTeal-1.png "Chill listening crop-3")](http://copia.io) 43 W 24th St, 6th Floor New York, NY 10010 [mailto:email@email.com](mailto:email@email.com) Copyright © 2025, Copia Automation, Inc.