Read the log. It tells you everything you need to know and also gives you a link to the manual.
That looks like something you need to ask the people at the Yarn project about, but it seems you have some undefined values in your package.json - if I’m reading it correctly. It expects an author name and version or description.
GDevelop has built-in tools to work with Yarn and handles all the packaging though.
yep! but i cannot upload for reasons :< i did exactly these Instructions in this page ( http://wiki.compilgames.net/doku.php/gdevelop5/publishing/windows-macos-linux-with-electron ) but when run
yarn electron-builder build script this error happen can some one give me a video to how package a gdevelop game manually ?
Your package.json is malformed. Look at the npm website for a correct package.json and correct it.
kidding me ?! the .json file include all events and is the heart of game that use sprits to create a game! packager must use gdevelop .json file but even when i replace gdevelop .json file with yarn .json file i see this error! idk about these scripts and offline packager so need some one to help me