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Starting mxmlc on the latest mac exits with error message:

Error: This Java instance does not support a 32-bit JVM. Please install the desired version.

How to fix?

Mitchell Currie
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Martin Heidegger
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1 Answers1

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The latest java update for mac removed the 32bit mode and thus doesn't offer the -d32. There are various solutions for this problem:

  • Remove the -d32 part of the mxmlc script.

    The mxmlc file is a "regular text file" that can be edited with any editor. vim should do the job. The easy fix is to just "comment" the "-d32" part out like this:

    # if [ "$isOSX" != "" -a "$HOSTTYPE" = "x86_64" -a "$check64" != "" ]; then
#      D32='-d32'
# fi

  • Use new Flex SDK

    The problem seems to be gone with the Flex 4.8 SDK

  • Change to old java version

    1.) Remove the old java http://www.java.com/en/download/help/mac_uninstall_java.xml 2.) Install the older version by typing "java --version" in the command line

Martin Heidegger
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    you can also do this same edit in the "compc" script, which is in the same directory as the mxmlc script (`${flex.sdk}/bin/compc`). a little context can be found here: http://help.adobe.com/en_US/flex/using/WS2db454920e96a9e51e63e3d11c0bf69084-7fd9.html#WS2db454920e96a9e51e63e3d11c0bf5fb32-7ff5 – manroe Feb 12 '16 at 00:22
  • The new flex fixed this issue for me. Thank you – Ethan Fischer Oct 06 '16 at 03:33