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Unable to create an instance on the Java Virtual Machine

February 12th, 2010 PeterPaul Leave a comment Go to comments

After installing JDeveloper 11G successfully, we encountered the following error while starting JDeveloper:

Unable to create an instance on the Java Virtual Machine located on c:\jdeveloper11g\Middleware\jdk160_05\jre\bin\client\jvm.dll

Virtual Memory settings
Using Google and Oracle Support showed us that the virtual memory for the PC was not set to level that allowed the JVM to initialise.
The solution is to increase the virtual memory or swap area. To do this on Vista:

My Computer > Properties > Advanced System Settings > tab Advanced > Performance - Settings > tab Advanced > Virtual memory - Change

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  1. Nguyen Giang Son
    March 25th, 2010 at 08:20 | #1
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    I have read this solution from Internet and I did it but it still happen again! That is why I said it is funny Oracle Jdeveloper!

  2. PeterPaul
    March 25th, 2010 at 10:05 | #2
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    What OS are you using? On some Windows versions a workaround is limiting the maximum heap size of your application to e.g. 512M instead of 1024M.

    hth

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