appx has unknown property 'customManifestPath'

[Socha17]

Hello,

Im building a appx file and want to use a custom appx manifest file.

The docs mention a customManifestPath property, but it doesn't seem to work.

when I run electron-builder --win

I get this error

⨯ Invalid configuration object. electron-builder 25.1.8 has been initialized using a configuration object that does not match the API schema. configuration.appx has an unknown property 'customManifestPath'. These properties are valid: object { addAutoLaunchExtension?, applicationId?, artifactName?, backgroundColor?, customExtensionsPath?, displayName?, electronUpdaterAware?, identityName?, languages?, makeappxArgs?, maxVersionTested?, minVersion?, publish?, publisher?, publisherDisplayName?, setBuildNumber?, showNameOnTiles? }

Here are some parts of my package.json

...
  "build": {
    "win": {
      "target": "appx"
    },
    "files": [
      "src/**/*",
      "dist/**/*",
      "node_modules/**/*"
    ],
    "appx": {
      "identityName": "...",
      "publisher": "...",
      "publisherDisplayName": "...",
      "applicationId": "....",
      "addAutoLaunchExtension": true,
      "customManifestPath": "./CustomAppxManifest.xml"
    },
  "devDependencies": {
    ...
    "@electron/packager": "^18.3.5",
    "electron": "^33.0.1",
    "electron-builder": "^25.1.8"
    ...
  },

How do I use the customManifestPath property? I need to use a custom manifest file because I need to add extra Capabilities to my app.

any help would be great, thanks!

[mmaietta]

You need to update to v26.0.x

[Socha17]

Ah ok I'll try that in a couple hours when I get back.

Thanks for the help, I'll close this if that fixes it

[Socha17]

Yeah that worked thanks!