Flex 4.15 on Linux - no flex-config.xml created

[Tom Chiverton]

I'm having trouble having followed the Ant-based install at
https://cwiki.apache.org/confluence/display/FLEX/Installation+help
for 4.15.
mxmlc says
defaults: Error: unable to open 
'/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/frameworks/flex-config.xml'

and this file is missing, even though Ant reported success.

I looked through installer.xml, but
ant -f installer.xml -Dair.sdk.version=2.6 fixup-config-files

reports
Buildfile: 
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/installer.xml
      [get] Getting: 
http://flex.apache.org/installer/properties/sdk/en_US.properties
      [get] To: 
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/en_US.properties

flex-sdk-description-flash:

flex-sdk-description-air:

fixup-config-files:
     [echo] Installing frameworks configuration files configured for 
use with an IDE
      [get] Getting: 
http://flex.apache.org/installer/properties/sdk/en_US.properties
      [get] To: 
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/en_US.properties

fixup-config-files-version:
      [get] Getting: 
http://flex.apache.org/installer/properties/sdk/en_US.properties
      [get] To: 
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/en_US.properties

fixup-config-files-swfversion:

BUILD FAILED
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/installer.xml:780: 
Replace: source file 
/home/tchiverton/workspace/apache-flex-sdk-4.15.0-bin/frameworks/flex-config.xml 
doesn't exist

so that can't be the right target to fix it.

Any Ant gurus know what might be up ?
--
*Tom Chiverton*
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