Node-webkit preview takes forever to load

Link to .capx file (required!):

dl.dropboxusercontent.com/u/70562654/Prototype3.6_340x236_bugreport.capx

Steps to reproduce:

1. Run preview with node-webkit

2.

3.

Observed result:

Harddisk loads like mad but the preview never executes. To stop it I need to kill the nw.exe processes in Task Manager, which also takes a loooong time to complete. This only happens the first time I try to run preview, on subsequent runs preview only takes about a couple of seconds to get going. Closing and re-opening C2 makes no difference; if I've already run Node-webkit preview once after a fresh boot it will always run without problems. Also doesn't happen with exported Node-webkit.

Expected result:

Browsers affected:

Chrome: no

Firefox: ?

Internet Explorer: ?

Operating system & service pack:

Windows 7 64-bit. Service pack 1

Construct 2 version:

r152    

This started to happen around r142-r143 I think? Definitely sometime between r139 and r146. It doesn't seem to happen with new capx'es.

Your example started after about 1.5 seconds for me.

Maybe something on your system is slowing it down? Anti-virus scanning? Recent MicroS**t updates?

What does Task Manager show when you try launching?

Task manager says:

Processes running -> 2 nw.exe, no game.exe.

Disk usage is hogged by nw.exe reading at about 250 kb/second. svchost.exe also uses quite a bit: 130 kb/s.

No antivirus software installed, just comodo firewall. But the firewall always informs me if it decided to block something it doesn't trust so I don't think that's it.

Node-webkit preview used to leak files on disk - some users reported hundreds of thousands of files. We fixed this by making it clear the cache on startup starting with r152, but if it has leaked a lot of files, it will take a long time to clear the cache on the first run.

Workaround: delete all the files for the project in your %appdata% folder, and preview again - it should start faster then.

Wow! Over two hundred thousand in my case :P Thanks, that worked nicely.