Path must be a string received undefined?

[Simon Segal]

Any ideas why this grunt task fails with "Path must be a string? Also tried making the property names strings in the json literal.

var createDMG = require('electron-installer-dmg');
var opts = {
appPath: "casehub-darwin-x64",
name: "casehub",
background: 'app/images/osxDmgBackground.png',
icon: 'app/images/osxIcon.icns',
overwrite:true
};
createDMG(opts, function done(err) {
console.log("DIRTY BIG OSX DMG BUILD ERROR**********************", err);
});

[Lucas Hrabovsky]

@cyclomaticsegal hrrmmm... mind posting the full stacktrace you're seeing? Off-hand, know where this could happen in the code, but w/o the stack, cant immediately provide feedback as to where we need to be providing better validation/error messages.

[Timm Stokke]

I'm seeing the same issue, any help would be appreciated :)

➜ ~/work/gotdone-desktop-app (master) electron-installer-dmg ./release/darwin-x64/GotDone-darwin-x64/GotDone.app/ GotDone --debug
path.js:8
    throw new TypeError('Path must be a string. Received ' +
    ^

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:8:11)
    at Object.posix.join (path.js:479:5)
    at module.exports (/Users/timmstokke/.nvm/versions/node/v4.2.1/lib/node_modules/electron-installer-dmg/index.js:67:52)
    at Object.<anonymous> (/Users/timmstokke/.nvm/versions/node/v4.2.1/lib/node_modules/electron-installer-dmg/bin/electron-installer-dmg.js:29:1)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Function.Module.runMain (module.js:467:10)
    at startup (node.js:134:18)

[Javier Sánchez - Marín]

I was getting this error before setting --out param.

The error is raised due to opts.out being undefined in https://github.com/mongodb-js/electron-installer-dmg/blob/master/index.js#L67

[Oli]

Had same problem, fixed by adding --out param.

[AshwiniRaoR]

I'm getting error even after setting --out param
triconmac$ electron-installer-dmg ./app-darwin-X64/app.app/ app --out=output/installers/ { [Error: Error runninghdiutil`! Exit code was 1]
exitCode: 1,
stdout: 'Preparing imaging engine…\nReading Protective Master Boot Record (MBR : 0)…\n',
stderr: '\nhdiutil: convert failed - Invalid argument\n' }``
I tried through electron builder too, its not creating osx installer. Guys please help me

[Aaron Mercier]

Using as an NPM script is also throwing this error unless the --out path is specified.

[Rafael Roman]

confirmed, adding --out= fixes the issue

[Lucas Hrabovsky]

Fixed by #5.