Trying to make an linux executable file

Hi all. I am trying to make a linux executable file but as a response I am getting error look like this

npm ERR! errno 1
npm ERR! EvenDex@0.1.0 package-linux: `electron-packager . EvenDex --overwrite --asar=true --platform=linux --arch=x64 --icon=system/icons/png/1024x1024.png --prune=true --out=release-builds`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the EvenDex@0.1.0 package-linux script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

I have already installed linux packager by the command

npm install -g electron-installer-debian
have created a config file called debian.json

  "dest": "release-builds/",
  "icon": "system/icons/png/1024x1024.png",
  "categories": [
  "lintianOverrides": [