HelloWorld example doesn't works - windows

When I tried to run HelloWorldExample got the following error:

C:\hAxe\HelloWorld>openfl test neko
Called from ? line 1
Called from CommandLineTools.hx line 1385
Called from CommandLineTools.hx line 25
Called from CommandLineTools.hx line 126
Called from CommandLineTools.hx line 604
Called from lime/project/PlatformTarget.hx line 77
Called from lime/tools/platforms/WindowsPlatform.hx line 122
Called from lime/tools/helpers/NekoHelper.hx line 40
Called from /usr/lib/haxe/std/neko/_std/sys/io/File.hx line 54
Uncaught exception - [file_open,Export/windows/neko/bin/HelloWorld.exe]

haxelib list return

actuate: [1.8.6]
box2d: [1.2.3]
haxelib_client: [3.2.0-rc.3]
hxcpp: 3.2.180 [3.2.193]
layout: [1.2.1]
lime-samples: [2.6.0]
lime: 2.7.0 [dev:F:\HaxeToolkit\haxe\lib\lime\2,7,0]
openfl-samples: [3.3.1]
openfl: [3.4.0]
swf: [2.1.3]

The file_open exception is caused due to the program being run as a Process in the background. If it’s still running and you can’t see it, open Task Manager and close the HelloWorld.exe manually. Also, Neko projects tend to take a while to free from memory before the executable is finally closed. So when you make changes, it’s likely it’s still running when you build.

Is this happening more than once?

Also, I would not recommend using the dev version of Lime unless you’re specifically testing new features.

Use the following command to revert back to the current version:

haxelib dev lime

If when you wish to use the dev version again, use the same command followed by the folder location.

Make sure that haxe and neko work from your command-line. Maybe also try openfl test flash or openfl test html5 and see if those are properly working?

What OS version do you have?