Windows 10 installation issues: "Class nodebox/client/Application not found." and "Failed to launch JVM."

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28 Feb, 2019 12:39 AM

Hello! I'm trying to install Node Box 3 Version 3.0.51 for Windows on my computer (Windows 10) but I'm getting the following error. First it says: "Class nodebox/client/Application not found." And then when I click "OK" it says: "Failed to launch JVM."
What should I do?

Thank you!

  1. Support Staff 1 Posted by john on 01 Mar, 2019 07:58 AM

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    Here is something that worked for other users getting this error.

    Go to

    Try to install 3.0.50 and see if that works.
    Then try to install 3.0.51 again.

    Please report back with your results. If that doesn't work, maybe Frederik can help.


  2. 2 Posted by sun yuyan on 25 Apr, 2019 07:34 AM

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    hello im encountering the same issue and i tried what u said but still not working. please get back to me!

  3. Support Staff 3 Posted by john on 25 Apr, 2019 10:08 AM

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    Sun Yuyan,

    I'm not sure how I can help. I no longer have access to a Windows machine to do any testing.

    Frederick, do you have any ideas?

    Are there any Windows 10 users out there who can confirm that 3.0.51 works for them?


  4. Support Staff 4 Posted by Frederik De Ble... on 25 Apr, 2019 12:02 PM

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    I can test tonight on a brand new Windows machine.

  5. Support Staff 5 Posted by Frederik De Ble... on 26 Apr, 2019 12:46 PM

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    I just tried this on a brand new Windows 10 (64 bit) machine, had no issues downloading / installing / running Windows.

    Not sure if you could try this trick to get it running (or at least to get more descriptive erors):

  6. 6 Posted by Hani on 15 Mar, 2020 12:56 PM

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    Hi all
    I had the same errors
    Class nodebox/client/Application not found
    Failed to launch JVM
    the problem solved by installing V 3.0.50 and Then V 3.0.51

  7. Support Staff 7 Posted by john on 15 Mar, 2020 09:06 PM

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    Thanks for the tip, Hani. This may help future people.

    Glad you were able to get up and running. Happy Nodeboxing!


  8. 8 Posted by Eli T on 30 Apr, 2020 07:58 PM

    Eli T's Avatar

    I had the same problem with Windows 10, 64 bit. The problem was solved, as mentioned above, by installing 3.0.50 first and then 3.0.51

    thanks for providing this solution!

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