Cannot create property 'pos' when used with Capnproto 1.0 compiler

[dattanchu]

When I run capnp compiler of Capnproto 1.0 version, I am getting

TypeError: Cannot create property 'pos' on string 'AppContext_DeviceOrientation'
    at setTextRangePos (/private/var/tmp/.../node_modules/typescript/lib/typescript.js:21342:19)
    at Object.setTextRangePosEnd (/private/var/tmp/.../node_modules/typescript/lib/typescript.js:21360:32)
    at createNodeArray (/private/var/tmp/.../node_modules/typescript/lib/typescript.js:22985:16)
    at Object.createEnumDeclaration (/private/var/tmp/.../node_modules/typescript/lib/typescript.js:25548:28)
    at Object.createEnumDeclaration (/private/var/tmp/.../node_modules/typescript/lib/typescript.js:3138:29)
    at generateEnumNode (/private/var/tmp/.../node_modules/capnpc-ts/src/generators.js:117:36)
    at generateNode (/private/var/tmp/.../node_modules/capnpc-ts/src/generators.js:159:13)
    at /private/var/tmp/.../node_modules/capnpc-ts/src/generators.js:148:32
    at Array.forEach (<anonymous>)
    at Object.generateNode (/private/var/tmp/.../node_modules/capnpc-ts/src/generators.js:148:17)

This happens for all .capnp files. The command that I use to run is

bin/external/capnproto/capnp compile --verbose --no-standard-import -o./node_modules/capnpc-js/bin/capnpc-js.js:bazel-out/darwin_arm64-fastbuild/bin -Iexternal/capnproto/c++/src -Ithird_party/capnpcs/compiler -Iexternal/capnproto_java/compiler/src/main/schema .../app.capnp

Any tips on how I can help debug this issue? Has anyone tried the latest capnproto version with capnp-ts? I tried running my C++ only executables and they run ok.

[Doris0812]

Have you solved it now?

[dattanchu]

I have not solved the issue. I believe the error is a red herring. Something has changed in capnpc 1.0 and this breaks capnp-ts.

[bartoszflis-silvair]

I've fixed a Cannot create property 'pos' on string error by using the following config in package.json. Used capnpc 0.7.0 though, so YMMV.

  "engines": {
    "node": "<=23",
    "npm": ">8.4"
  },
  "dependencies": {
    "@types/debug": "^4.1.12",
    "capnpc-js": "0.5.1",
    "capnpc-ts": "0.7.0",
    "ts-node": "~7.0.0",
    "typescript": "<4"
  },
  "overrides": {
    "typescript": "$typescript"
  }

[shestakov-bc]

In my case it worked with capnpc 0.8.0 which is bundled by default with Ubuntu 22.04. I did also tried manually built 0.7.0, and got same results. It only worked with package "capnpc-ts": "0.4.0". Even 0.5.0 would throw same error. Trying different version of typescript or ts-node wouldn't change a thing for me. I hope it will unlock someone sooner, I lost half a day with this.