Project does not work on OSX Mojave

[jmfayard]

$ ./gradlew generateNativeInstaller
No base JDK. Package will use system JRE.
No base JDK. Package will use system JRE.
Creating app bundle: /Users/jmfayard/Dev/try/fxldemo-gradle/build/installer/bundles/fxldemo-gradle.app
java.io.FileNotFoundException: /Users/jmfayard/Dev/try/fxldemo-gradle/build/installer/bundles/fxldemo-gradle.app/Contents/PkgInfo (Permission denied)
Error: Bundler "Mac Application Image" (mac.app) failed to produce a bundle.

[jmfayard]

In my own project with Gradle 5.2, it didn't work either, albeit with a different error

./gradlew generateNativeInstaller
13:29:44: Executing task 'generateNativeInstaller'...
> Task :jar UP-TO-DATE
> Task :copyAppDependencies
> Task :generateApplicationManifest
> Task :embedApplicationManifest
No base JDK. Package will use system JRE.
No base JDK. Package will use system JRE.
Creating app bundle: /Users/jmfayard/Dev/mautinoa/asciiapp/build/installer/bundles/de.fayard.asciiapp.app
Did not find a key matching 'Developer ID Application: '
Building DMG package for de.fayard.asciiapp
Did not find a key matching 'Developer ID Application: '
Exec failed with code 2 command [[/usr/bin/SetFile, -c, icnC, /var/folders/4c/176bjfgn2fj9xp68ckjpz2940000gs/T/fxbundler3335180035600545251/images/de.fayard.asciiapp/.VolumeIcon.icns] in unspecified directory
Result DMG installer for de.fayard.asciiapp: /Users/jmfayard/Dev/mautinoa/asciiapp/build/installer/bundles/de.fayard.asciiapp-0.1.dmg
Building PKG package for de.fayard.asciiapp
Did not find a key matching 'Developer ID Application: '
Did not find a key matching 'Developer ID Installer: '
Did not find a key matching '3rd Party Mac Developer Application: '
Bundler Mac App Store Ready Bundler skipped because of a configuration problem: No Mac App Store App Signing Key  
Advice to fix: Install your app signing keys into your Mac Keychain using XCode.

> Task :generateNativeInstaller
Native installer is now available in /Users/jmfayard/Dev/mautinoa/asciiapp/build/installer

That does produce a .app, but it fails and crash

[jmfayard]

Do I need an Apple Developer ID?
https://help.apple.com/developer-account/#/dev04fd06d56

[edvin]

You don't need an apple dev id unless you want to sign your package. Your first issue seems to be related to write permissions. You need to investigate that locally. The ClassNotFoundException is probably a result of fxlauncher being unable to download the files from your configured app url. Either you haven't uploaded the files to the given location, or something is preventing your machine from downloading the files from that location.

[JacekPietras]

Similar issue after just running project on Windows

[edvin]

So the same is true here. To know exactly what you're doing wrong you're going to have to post your project :)