Sorry to hear that, it sounds like you will need to restore your forum from backup
I did npm install, it installed everything correctly except for mmmagic.
ImageMagick is, according to the docs, installed too.
But I still get this error:
LINK : fatal error LNK1104: cannot open file 'LIBCMT.lib' [C:\node\nodebb\node_modules\heapdump\build\addon.vcxproj]
What can I do?`
Visual Studio is also installed...
OS: Windows Server 2012 R2
Well, it appeared that Visual Studio 2013 Express for Web, VS2013 Express for Windows and VS2013 Express for Windows Desktop are really three different things. You need the last one to run it...Solved...^^
Just spent 3 hours trying to resolve it. You are my hero !