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I'm trying to install OpenFL in a windows system. I have already installed haxe but when I run haxelib install openfl in command prompt, haxelib returns Invalid operation(+). Any ideas about how can this problem be solved?

Gama11
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Puma
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    Does running "haxelib" on it's own work? If not, please provide the full error message. Otherwise, can you install other haxelibs? Or run other commands like "haxelib search" etc? – Jason O'Neil Sep 20 '13 at 06:12
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    If I just type 'haxelib' in the windows command prompt, it seems to be ok as it produces a list with the corresponding paramaters. But if I add any parameter (for e.g. 'haxelib install openfl' or 'haxelib info' or 'haxelib search' etc, it returns 'Invalid operation (+)'. – Puma Sep 21 '13 at 06:58

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The error message is most likely related to haxelib/neko trying to add two null strings.

I have encountered an issue before with Jenkins, since Jenkins removes HOMEDRIVE and HOMEPATH from the env-vars while doing a build. You may be encountering something similar.

Check and make sure HOMEDRIVE and HOMEPATH are set in your current shell, the re-try haxelib. If this does not work, we'll have to narrow down further.

Matthew Spencer
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  • My environmental variables in my windows xp system are: HAXEPATH: C:\HaxeToolkit\haxe\ NEKO_INSTPATH: C:\HaxeToolkit\neko PATH: C:\Program Files\Java\jdk1.7.0_04\bin\javaw.exe;%HAXEPATH%;%NEKO_INSTPATH% Still the same problem. – Puma Sep 24 '13 at 05:28
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    What about HOMEDRIVE and HOMEPATH? – Matthew Spencer Sep 24 '13 at 11:28
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    I created these two environmental variables and it works :) Thank you very much :) – Puma Sep 24 '13 at 11:52
  • @MatthewSpencer correct answer and a [pull request](https://github.com/HaxeFoundation/haxelib/pull/94) - you legend! – Jason O'Neil Oct 01 '13 at 06:22
  • @Puma what did you set `HOMEDRIVE` and `HOMEPATH` to? – ashes999 Aug 04 '16 at 10:12