gRPC doesn't support Protobuf files with custom attributes

Hello there,

We’ve been adding gRPC validation to some of our proto files, but the services break when we import them into retool. The issue has been fixed in the protobuf.js library at

I believe a simple upgrade from the 6.9.0 version that retool currently uses to 6.10.0 or greater will solve the issue.

Many thanks

1 Like

Hi @Jawshua,

Thanks for reaching out! We were unable to reproduce your issue but have upgraded from 6.9.0 to 6.10.0 in our latest on-prem release. Let us know if you continue to have issues after you upgrade.