Error about missing helper during installation

[shitpoet]

forked-systray reports error about some helper file in /tmp during (global?) installation.

Original systray installs without such errors.

Node 14.14.0 Linux 64-bit, npm 6.14.8

> [email protected] preinstall /home/ors/.npm-packages/lib/node_modules/forked-systray
> node ./scripts/fetch-prebuilt-helper.js

systrayhelper not installed!
trying to fetching prebuilt for: linux
donload location: /tmp/node-systray-downloadHelper
===========================================================================================================================
finished untar
testing execution
usage: systrayhelper
	send&receive json over stdio to create menu items, etc.

Version 0.0.5 (d5794e2a72a9cb160d78b6fd9ee640ad1df02af7 built 2018-12-05T09:24:55Z)
helper started succesful!
Exception Error: ENOENT: no such file or directory, unlink '/tmp/node-systray-downloadHelper'
/home/ors/.npm-packages/bin/systrayhelper -> /home/ors/.npm-packages/lib/node_modules/forked-systray/systrayhelper
+ [email protected]
added 94 packages from 85 contributors in 6.953s