Flex Builder Cannot Locate the Required Version of Flash Player

I am writing this post becouse I am very “angry” and I need to say something before I explode. This error has “eat” three hours of my time (I am very angry when I lose my time with useless things).

All starts with a fresh OS. After I have install Adobe Flex Builder and import some of my projects I had try to run one project in a stand alone Flash Player BUT (big buttt) I have receive :

Flex Builder Cannot Locate the Required Version of Flash Player” .

This was not my first time when I have receive this error so I had try to fix this, the simplest way I had know, access http://www.adobe.com/support/flashplayer/downloads.html download Flash Player 10 ActiveX control content debugger and reinstall Flash Player, BUT (again big buttt) no result the Flex Builder still bother me with : ”Flex Builder Cannot Locate the Required Version of Flash Player” so I call my best friend “Google” asking him about the error.

After at least a hour of searching and reading all I have found was how to fix this error for Firefox:

Firefox was looking for the npswf32.dll in the ProgramFiles/Mozilla Fireforx/plugins directory yet Macromedia installed it in the window/system32/macromed/flash directory.”

some trash links and for a Stand Alone Flash Player to uninstall Flash Player and install the Debug version of Flash Player from http://www.adobe.com/support/flashplayer/downloads.html BUT no solution for me, nothing to work.

I tried to reinstall the Adobe Flex Builder, no luck, tried to install Flex Builder as a Eclipse plugin, no luckno luck, no luck …… So if you are “HERE” when you thing nothing can help maybe the solution I will present next will help you.

I have found this trying to open a “.swf” file and see that no default program was set to open files with .swf extension, the next thing I have done was download the Download the Adobe Flash Player 10 Update for Windows and Macintosh extract the files and copy the “Player\Debug\FlashPlayer.exe” for example in “C:\”. After that I have select a .swf file and open it with “C:\FlashPlayer.exe” making this the default program to open “.swf” files.

After this simple action, BINGO no BUT no error in Flex Builde “all good to go”. I hope this can help you spare some time.

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8 Responses to “Flex Builder Cannot Locate the Required Version of Flash Player”

  1. erwin Says:

    I spent a lot of time on those absolete web link without any solution until I found out your blog. Your fix helped me too. Thx a lot,

  2. dave Says:

    this problem happened when i upgraded to Flash Builder 4 and removed the previous version. this posting saved me a lot of time trying to figure it out, thanks.

    Instead of downloading FlashPlayer.exe, you can use an existing file, e.g. C:\Program Files\Adobe\Adobe Flash Builder 4\player\win\FlashPlayer.exe, but be aware that this problem will happen again then next time you upgrade.

    Also, you need to close FB when doing this.

  3. Graham Phillips Says:

    Another way around it is to ensure you have selected the Generate HTML wrapper file checkbox under Properties>Flex Compiler. But thanks for the tip.

  4. Shiki Says:

    Thanks! I’ve been searching around for a simple solution like this.

  5. dkan Says:

    unfourtunately, your tip haven’t helped me to fix the problem.
    the same problem is still with my FB(

  6. Alexandru Ghiura Says:

    Yes I know this fix does’t work for FB

  7. Boyang Says:

    Thank you, man. I had the same problem. It’s really help. : )

  8. Alexandru Ghiura Says:

    About FB this fix works but if you have Vista or Windos 7 you should start the swf file as administrator ( right click on flash player > run as administrator ) then open a swf file


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