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Old 09-04-2011, 08:55 AM   #1
[R-DEV]Deadfast
PR:A3 Lead Developer

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Exclamation PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

This thread will help you troubleshoot the following error you may receive upon attempting to start Project Reality: Arma 2.
Quote:
Unable to start Project Reality: Arma 2!

Arma 2 is not installed or the installation is corrupted.
(and/or)
Arma 2: Operation Arrowhead is not installed or the installation is corrupted.

Reinstalling the game(s) may fix the issue.

Causes and solutions:
  1. You do not have Arma 2: Combined Operations (Arma 2 + Arma 2: Operation Arrowhead)
    • Install both Arma 2 and Arma 2: Operation Arrowhead.
  2. The game lacks the proper registry values determining its install location or the path is incorrect
    • Use ARMA 2 Registry Paths Fixer to enter the paths manually.
      If the program reports that an entire key is missing you may not have the game installed (refer to cause 1) or it is installed improperly. In either case the game will have to be (re)installed.
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Old 09-05-2011, 10:05 PM   #2
XRsyst
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

What resolved it for me is I hadn't ever started vanilla ARMA2 (I only got this for PR, not for any of the normal ARMA stuff). Once I had started both ARMA2 & ARMA2:OA then starting PR works. Give that a shot before reinstalling
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Old 09-07-2011, 11:49 AM   #3
BlackArt
Angry Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

http://www.realitymod.com/forum/f449...ml#post1661812
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Last edited by BlackArt; 09-07-2011 at 01:06 PM.. Reason: moved to its own thread since its not an install error but a launching one
Old 09-07-2011, 08:33 PM   #4
Dwarden
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

the registry entries are written on game start, so you need run ARMA 2 once to have them too...
same goes for OA etc.
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Old 09-08-2011, 12:00 AM   #5
BlackArt
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

Quote:
Originally Posted by BlackArt View Post
I have posted this here basically to say yes i have tried this and it doesnt work. Also started it in its own thread since its a problem i didnt see anyone else having while searching the forum.

Basically, Yes i have tried this and NO it still wont launch for PRAA.exe

Found my post moved to a different location below:
Quote:
Originally Posted by BlackArt View Post
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Last edited by BlackArt; 09-08-2011 at 12:15 AM..
Old 09-08-2011, 10:24 AM   #6
anutsl
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

Is there any chance of adding support for ArmA2: Reinforcements?
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Old 09-14-2011, 08:13 AM   #7
Puddy
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

Have been playing the game fine then "this error" happens. I fixed it real quick, this is how I did it.

1. Verified game files through steam
2. Ran Combined Operations through Steam until the menu then quit
3. Open PR through the PR shortcut
4.
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Old 09-15-2011, 10:15 AM   #8
BlackArt
Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

Quote:
Originally Posted by Puddy View Post
Have been playing the game fine then "this error" happens. I fixed it real quick, this is how I did it.

1. Verified game files through steam
2. Ran Combined Operations through Steam until the menu then quit
3. Open PR through the PR shortcut
4.
Tried it didn't solve the problem for me... =\
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Old 03-18-2012, 02:00 AM   #9
Nathanual Nolan

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Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

I also have this problem i have all the Arma's through steam and it wont work?
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Old 03-18-2012, 04:58 AM   #10
BearBison
Project Reality Beta Tester
PR Server License Administrator

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Default Re: PRAA.EXE: Arma 2/Operation Arrowhead is not installed error - READ FIRST

Have you ran both ArmA2 and ArmA2:OA as individual games first to ensure the registry keys are created?


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