Hi,
Depending of your project, it could be less or more difficult to move the classic application to Eclipse.
I recommend you to refer to the AN4727:
AN4727, Import project from CW classic to CW MCU v10 4 CodeWarrior for Microcontrollers v10.4
http://cache.freescale.com/files/soft_dev_tools/doc/app_note/AN4727.pdf
For the error you reported, please click on Console Tab to get more information on the problem.
Have a great day,
Pascal
NXP Technical Support
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