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hexAIS.exe issue

I'm trying to flash my application on DM6437 DSP but I'm not able to convert it to .hex. If I run "hexAIS.exe Appname.out" I'm able to see following message:
Chosen boot mode is EMIFA.
Beginning the AIS file generation.
Parsing AIS INI file, dm643x.ini.
AIS file being generated for the EMIFA boot mode.
Parsing the input COFF file, dm643x_AISExtra.out.
Parsing the input COFF file, PBSDDaVinciAVDP.out.
Index was outside the bounds of the array.   at AISGenLib.COFFFile..ctor(String
filename)
   at AISGenLib.AISGen.GenAIS(String coffFileName, AISGen devAISGen)
   at AISGenLib.AISGen.GenAIS(String coffFileName, String bootmode, AISGen devAI
SGen)
   at hexAIS.Program.Main(String[] args)
Unhandled Exception!!! Application will now exit.
 
By the way, size of output file is 2.5 MB but it should not be a problem. Or?
Thanks in advance.