kazu $ npm run build

> appium-windows-driver@4.4.5 build
> tsc -b

lib/utils.js:24:3 - error TS2322: Type '{ stdout: string | Buffer<ArrayBufferLike>; stderr: string | Buffer<ArrayBufferLike>; }' is not assignable to type '{ stdout: string; stderr: string; }'.
  Types of property 'stdout' are incompatible.
    Type 'string | Buffer<ArrayBufferLike>' is not assignable to type 'string'.
      Type 'Buffer<ArrayBufferLike>' is not assignable to type 'string'.

24   return await B.resolve(execAsync(fullCmd, opts))
     ~~~~~~