Regenerating protobuf bindings fails

[paulcadman]

I'm having some trouble regenerating the protobuf ts/js/ts declaration (.d.ts) files:

Here's what I tried (after copying the new protobuf dir from $ANOMA/anoma/apps/anoma_protobuf/priv/protobuf to the repo.

npm install
./scripts/generate.sh

I get an error:

protoc-gen-js: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--js_out: protoc-gen-js: Plugin failed with status code 1.

I then tried setting:

--plugin="protoc-gen-js=${PROTOC_GEN_JS_PATH}"

in the generate.sh (setting PROTOC_GEN_JS_PATH to the appropriate path in node_modules/.bin)

The script then runs but it doesn't generate the TS declaration .d.ts files. So when I run the example:

npx ts-node src/example.ts

I get the error:

.npm/_npx/1bf7c3c15bf47d04/node_modules/ts-node/src/index.ts:859
    return new TSError(diagnosticText, diagnosticCodes, diagnostics);
           ^
TSError: ⨯ Unable to compile TypeScript:
src/example.ts:2:24 - error TS2307: Cannot find module './protobufs/intents/intent_pb' or its corresponding type declarations.

2 import { Intent } from "./protobufs/intents/intent_pb";
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Am I following the right steps to generate the new grpc-js output?
Am I running src/example.ts in the recommended way?