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Could not create the Java Virtual Machine

MoniBhMoniBh USMember ✭✭
in Xamarin.Android

I am trying to create and .apk file of my project but when I am trying to build the project in release mode, it is giving me these errors:

  1. Could not create the Java Virtual Machine.
  2. Error: A fatal exception has occurred. Program will exit.

I am using google maps in my project. One of my team member is able to generate it from Mac machine but I am using Windows 8.1 and it is giving me errors. I tried increasing the heap size in system variables but it didn't work for me. Can anyone please help me to find out some solution.

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Answers

  • MoniBhMoniBh USMember ✭✭

    I found solution on below link and it worked for me :

    https://kb.xamarin.com/customer/portal/articles/1661284-why-does-my-xamarin-forms-maps-android-project-fail-with-compiletodalvik-unexpected-top-level-error-

    I made following settings as suggested for Xamarin Studio

    Right-click the Android project & open the project options.
    Go to "Build -> Android Build -> Advanced"
    In the Java heap size text box enter 1G.
    Rebuild the project.

  • AdamScrogginAdamScroggin USUniversity ✭✭

    Changing the heap to 1G did not work for me.

  • Ram.ShRam.Sh ILUniversity ✭✭

    +1 Changing the heap to 1G did not work for me.

  • SteveResnickSteveResnick USMember ✭✭

    +1 Changing the heap to 1G did not work for me.

  • AdamScrogginAdamScroggin USUniversity ✭✭

    Rebooting my machine sometimes helps. This issue is annoying and I wish they would fix it.

  • elenaorelelenaorel USMember ✭

    "Changing the heap to 1G" worked for me before I upgraded Xamarin studio.
    I have released a few projects without problems in Dec, 3 2015.
    All my projects are broken after uploading a new xamarin studio release.
    Just an example:
    1. I created a new project - picture #1 - OK
    2. Changed Java heap to 1G - as usual
    3. Just added a package "xamarin.googleplayservices.ads" - didn't change anything else - picture#2 -
    java.exe exited with code 1. I didn't add a line of code to the test project.

    "Could not create the Java virtual machine" - it is a hint, but I was not able to figure out the problem.
    Most likely I missed something important.
    Do we have a way to open a ticket with Xamarin?
    Thank you in advance.

  • elenaorelelenaorel USMember ✭

    Heh, Microsoft thanks! I had 30 days to downgrade the windows 10 to windows 8.1. I just did it. All my projects are back with no errors... No more "java.exe exited with code 1" error messages...

  • aunanueaunanue ARMember ✭✭

    I know it's an old thread but in my case I solved by doing this:

    1) Run regedit
    2) Go to HKEY_CURRENT_USER
    3) Select Environment
    4) Add a new String Value and enter _JAVA_OPTIONS for Value name
    5) Enter -Xms256m -Xmx512m for Value data
    6) Reboot computer

  • alaaalshaeralaaalshaer USMember ✭

    I have same problem Changing the heap not help me
    i'm using visual studio xamarin

  • mojtabaZolfagharimojtabaZolfaghari USMember ✭✭
    edited December 2016

    this problem is happened when
    1: update sdk without ndk
    2: new api or tools of sdk come but the user do not upgrade jre to same level
    3: new release of xamarin not need to change heap to 1G but you must update everything about sdk ndk and xamarin version to last

  • mojtabaZolfagharimojtabaZolfaghari USMember ✭✭

    @MoniSrivastava said:
    I am trying to create and .apk file of my project but when I am trying to build the project in release mode, it is giving me these errors:

    1. Could not create the Java Virtual Machine.
    2. Error: A fatal exception has occurred. Program will exit.

    I am using google maps in my project. One of my team member is able to generate it from Mac machine but I am using Windows 8.1 and it is giving me errors. I tried increasing the heap size in system variables but it didn't work for me. Can anyone please help me to find out some solution.

    @AdamScroggin said:
    Changing the heap to 1G did not work for me.

    @aunanue said:
    I know it's an old thread but in my case I solved by doing this:

    1) Run regedit
    2) Go to HKEY_CURRENT_USER
    3) Select Environment
    4) Add a new String Value and enter _JAVA_OPTIONS for Value name
    5) Enter -Xms256m -Xmx512m for Value data
    6) Reboot computer

  • mojtabaZolfagharimojtabaZolfaghari USMember ✭✭

    xamarin not working with sdk 1.9
    old xamarin version work with 1.6.39
    new xamarin version worked with 1.8.51

  • ManojkumarMaliManojkumarMali USMember ✭✭✭

    @aunanue said:
    I know it's an old thread but in my case I solved by doing this:

    1) Run regedit
    2) Go to HKEY_CURRENT_USER
    3) Select Environment
    4) Add a new String Value and enter _JAVA_OPTIONS for Value name
    5) Enter -Xms256m -Xmx512m for Value data
    6) Reboot computer

    Thanks @aunanue

  • AuriAuri USMember ✭✭

    In your Android csproj, do the following:

    Make sure you get rid of the following items:

    768MB

    Ensure DebugType is:
    pdbonly

    Good luck!

  • SDKyzeSDKyze Member ✭

    After trying all of the above suggested things, I ended up giving up, uninstalling the JDK and reinstalling it. This fixed my problem. I'm not sure why or what caused it but just in case anyone else has issues.

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