Getting a weird error in icongenie on Linux

[walfin]

I recently installed icongenie on a new computer (running Kubuntu) and I’m getting a whole series of these errors when running icongenie:

(node:94831) UnhandledPromiseRejectionWarning: Error
    at afterWriteDispatched (internal/stream_base_commons.js:78:25)
    at writeGeneric (internal/stream_base_commons.js:73:3)
    at Socket._writeGeneric (net.js:714:5)
    at Socket._write (net.js:726:8)
    at doWrite (_stream_writable.js:415:12)
    at writeOrBuffer (_stream_writable.js:399:5)
    at Socket.Writable.write (_stream_writable.js:299:11)
    at Socket.Writable.end (_stream_writable.js:584:10)
    at Socket.end (net.js:545:31)
    at handleInput (/usr/local/lib/node_modules/@quasar/icongenie/node_modules/execa/index.js:87:17)
(node:94831) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 118)

However, the icons and splash screens are correctly generated.

Anyone have any idea what this is?

I’ve never gotten this before, whether on Windows, Mac or Linux.