Chrome Extension - Invalid Package. Details:Can't unzip the extension

Question

I worked on a chrome extension and uploaded it to chrome webstore and everything went well, I installed it on my Mac and on my Ubuntu machines in chrome it worked fine and installed. But when I try it on Windows machines, after download it popups a error message saying "Invalid Package, Can't unzip the extension".

Can any one tell me why or what might be the cause for this OS specific issue. Does it have anything to do with the permission or anything with respective folder name or content? The folder name or the extension name don't have any special characters and the previous version was fine.

Thanks in advance.

Answer 1

So the trick it to compress all the files within the folder not the folder itself.

NOTE: If it's saved in Google Drive (local syncing) this well mess it up too. Drive attaches little icons to folders that show up as unknown.

So remake the folder outside of Google Drive. That's what was messing mine up after the "only compress inside of folder" fix.

Answer 2

Another cause of this problem (Error: could not unzip extension) might be that you include the root directory in your zip. You should zip all files in the same level of manifest.json.

Example

-yourappfolder
   |_manifest.js
   |_popup.html

In this case you should zip only manifest.js and popup.html, instead of zip the entire directory yourappfolder.

In other words, in your zip file you should NOT see the yourappfolder directory.