Grunt doesn't create an installer, but shows no error

[panther99]

I've tried to create Windows installer for my Electron application but when I run grunt create-windows-installer it just shows this:

Running "create-windows-installer:x64" (create-windows-installer) task

Running "create-windows-installer:ia32" (create-windows-installer) task

Done, without errors.

When I check both directories there's nothing. Here is my Gruntfile.

module.exports = function(grunt) {

    grunt.initConfig({
        'create-windows-installer': {
          x64: {
            appDirectory: '/',
            outputDirectory: '/tmp/build/64',
            authors: 'sfsfdadf',
            exe: 'mcalc-x64.exe'
          },
          ia32: {
            appDirectory: '/',
            outputDirectory: '/tmp/build/32',
            authors: 'sfsfdadf',
            exe: 'mcalc-x86.exe'
          }
        }
    });

    grunt.loadNpmTasks('grunt-electron-installer');

    grunt.registerTask('default', ['create-windows-installer']);

}