icons missing?

[vattybear]

hi - thanks for this - awesome tool

I had one issue loading the extension into chrome

Error :
Failed to load extension
File
~\file\reinvent-portal-extension\build
Error
Could not load icon 'icons/icon_16.png' specified in 'icons'.
Could not load manifest.

I then removed all these entries from the manifest and it works without these.

"icons": {
"16": "icons/icon_16.png",

Wonder what step I missed?