Invalid Icon File Size

I am using electron-builder v=21.2.0 Building for windows.

It just about completes (it gets to ‘building’ step when this happens:

Error while loading icon from "C:\RP1\ArcMages\arcmages-vue-client\dist_electron\.icon-ico\icon.ico": invalid icon file size
Error in macro MUI_INTERFACE on macroline 86
Error in macro MUI_PAGE_INIT on macroline 7
Error in macro MUI_PAGE_INSTFILES on macroline 5
!include: error in script: "oneClick.nsh" on line 8
Error in script "<stdin>" on line 107 -- aborting creation process

    at ChildProcess.childProcess.once.code (C:\RP1\ArcMages\arcmages-vue-client\node_modules\builder-util\src\util.ts:239:14)
    at Object.onceWrapper (events.js:277:13)
    at ChildProcess.emit (events.js:189:13)
    at ChildProcess.EventEmitter.emit (domain.js:441:20)
    at maybeClose (internal/child_process.js:970:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)

This is the properties of the .ico file it is trying to use.

I am generating my icons with the fllowing:

electron-icon-builder --input=./public/image/branding/ArcMageLogoV2.png --output=build --flatten

Icons are below. icons.zip

[RacerDelux]

This would still be an issue within electron-builder then. Sadly the issue got closed.

[supertommy]

@Sakari369 I had used that site too and it didn’t work; I think that site actually produces a bad ICO file.

I used this one instead: https://image.online-convert.com/convert-to-ico

I had to convert the ICNS to PNG first.