service-control introduced v2 protos: https://github.com/googleapis/googleapis/tree/master/google/api/servicecontrol/v2
service_control.proto import google/rpc/context/attribute_context.proto code

Nodejs-service-control fails on generated new PR due to npm run compile-protos fails on error:

(node:20193) UnhandledPromiseRejectionWarning: Error: ENOENT: no such file or directory, open 'protos/google/rpc/context/attribute_context.proto'

It's ok to import google/rpc/*.proto but not subdirectory.