Unable to compile the TypeScript

[ya332]

npm run build:live gives me an error. I can't manage to compile the TypeScript.

return new TSError(diagnosticText, diagnosticCodes)
^
TSError: ⨯ Unable to compile TypeScript:
src/processOn.ts:39:16 - error TS2345: Argument of type '"unhandledRejection"' is not assignable to parameter of type 'Signals'.

39 process.on("unhandledRejection", (err: Error) => {
~~~~~~~~~~~~~~~~~~~~

at createTSError (C:\Users\I508553\Desktop\Misc\Dev\stack\node_modules\ts-node\src\index.ts:261:12)
at getOutput (C:\Users\I508553\Desktop\Misc\Dev\stack\node_modules\ts-node\src\index.ts:367:40)
at Object.compile (C:\Users\I508553\Desktop\Misc\Dev\stack\node_modules\ts-node\src\index.ts:558:11)
at Module.m._compile (C:\Users\I508553\Desktop\Misc\Dev\stack\node_modules\ts-node\src\index.ts:439:43)
at Module._extensions..js (internal/modules/cjs/loader.js:947:10)
at Object.require.extensions.<computed> [as .ts] (C:\Users\I508553\Desktop\Misc\Dev\stack\node_modules\ts-node\src\index.ts:442:12)
at Module.load (internal/modules/cjs/loader.js:790:32)
at Function.Module._load (internal/modules/cjs/loader.js:703:12)
at Module.require (internal/modules/cjs/loader.js:830:19)
at require (internal/modules/cjs/helpers.js:68:18)

[nodemon] app crashed - waiting for file changes before starting...