# 🐞 Bug report: Obscure error while uploading a logo during BUIDL creation When a logo is being uploaded, the API returns a `400` error: ```json {"file_name":["Ensure this field has no more than 64 characters."]} ``` However, the user doesn't receive any notification in the user interface. Given that the logo field is mandatory, users may encounter an inability to create a BUIDL, with the reason being unclear. ![](https://hackmd.io/_uploads/r1d1t6PVh.gif) ## 😺 Possible solution Display the error in the BUIDL creation form.