# Uppy with companion and box

**URL:** <https://community.transloadit.com/t/uppy-with-companion-and-box/17304>\
**Category:** Uppy\
**Created:** [October 15, 2024, 8:18am UTC](https://community.transloadit.com/t/uppy-with-companion-and-box/17304 "2024-10-15T08:18:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hkosmidi](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/hkosmidi/32/131_2.png) [@hkosmidi](https://community.transloadit.com/u/hkosmidi)\
**Post date:** [October 15, 2024, 8:18am UTC](https://community.transloadit.com/t/uppy-with-companion-and-box/17304/1 "2024-10-15T08:18:13Z")

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Hello. I use uppy+companion server and want to access box files. I use the uppy/box as it is documented. I use uppy v2 and box 2.1. But I get

Error in mounted hook: “TypeError: this.plugin.uppy.registerRequestClient is not a function”

I load it with:  
this.uppy.use(Box, {  
target: Dashboard,  
companionUrl: window.COMPANION\_URL,  
});

all other storages (dropbox/gdrive/onedrive) works correctly. Only box cannot be loaded.

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**Author:** ![Merlijn](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/merlijn/32/1382_2.png) [@Merlijn](https://community.transloadit.com/u/Merlijn)\
**Post date:** [October 15, 2024, 8:35am UTC](https://community.transloadit.com/t/uppy-with-companion-and-box/17304/2 "2024-10-15T08:35:51Z")

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Hi, can you create a GitHub issue with a reproducible example, ideally on Stackblitz? Thanks