TypeError: Cannot read property 'hasOwnProperty' of null

[snsyzf]

D:\IdeaProjects\ml\ml-shared>npm install -g protoc-gen-ts
C:\Users\yzf\AppData\Roaming\npm\protoc-gen-ts -> C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\bin\protoc-gen-ts
npm WARN protoc-gen-ts@0.3.4 requires a peer of typescript@^4.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN protoc-gen-ts@0.3.4 requires a peer of google-protobuf@^3.13.0 but none is installed. You must install peer dependencies yourself.

• protoc-gen-ts@0.3.4
  added 1 package in 0.267s

D:\IdeaProjects\ml\ml-shared>protoc-3.9.0-windows-x86_64.exe --ts_out=dist ./proto/game.proto
C:\Users\yzf\AppData\Roaming\npm\node_modules\typescript\lib\typescript.js:12449
return array.hasOwnProperty("pos") && array.hasOwnProperty("end");
^

TypeError: Cannot read property 'hasOwnProperty' of null
at Object.isNodeArray (C:\Users\yzf\AppData\Roaming\npm\node_modules\typescript\lib\typescript.js:12449:22)
at createNodeArray (C:\Users\yzf\AppData\Roaming\npm\node_modules\typescript\lib\typescript.js:20812:25)
at Object.createCallExpression (C:\Users\yzf\AppData\Roaming\npm\node_modules\typescript\lib\typescript.js:22099:95)
at Object.createCall (C:\Users\yzf\AppData\Roaming\npm\node_modules\typescript\lib\typescript.js:3022:29)
at createToObject (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:49:14)
at createMessage (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:1016:5)
at processMessageDescriptor (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:1545:5)
at processProtoDescriptor (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:1590:12)
at main (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:1680:24)
at Object. (C:\Users\yzf\AppData\Roaming\npm\node_modules\protoc-gen-ts\index.js:1765:1)
--ts_out: protoc-gen-ts: Plugin failed with status code 1.

[snsyzf]

[NfNitLoop]

This seems to be something that's broken when running against typescript versions >= 4.0. In #32 I get similar errors if I upgrade to TSv4.

This will eventually be a breaking change that forces me to move off of protoc-gen-ts.

[thesayyn]

I'm sorry that I can't look into this right now because I don't have a computer to work on this. I have been out of work for 2 months. So it would be great if someone could send a PR for this.

[dreamershl]

I believe it is caused by this repeated field. It call with "null" parameter

But here it doesn't check null (if you add elements === null, and build protobuf again, the exception won't happen again)

[thesayyn]

This is a great finding. I would appreciate if you can send a PR to fix this.

I would be happy to assist you on it and get it merged and released.

Also: This repository is not unmaintained. i don't even have enough resources to live right now. Let alone fix a problem when i don't have any resources.
Thanks for assuming that this project is unmaintained. @NfNitLoop

[dreamershl]

have create the pull request for this fix.

[thesayyn]

Thanks to @dreamershl. A fix landed for this on master which will be released quickly.