Hi Sonchai,
Which steps did you follow to migrate your project? The cleanest way to migrate a classic project to CodeWarrior eclipse is to create a new project in CodeWarrior 10.6 and then copy your source files to it. Here is a document that explains in detail how to do this:
http://cache.freescale.com/files/soft_dev_tools/doc/app_note/AN4727.pdf
By looking at the error it seems like your project has a duplicated definition for a vector, make sure that you only declare the interrupt vectors (and reset vector) in a single place, in CodeWarrior the reset vector is defined using the below line in the *.prm file:
VECTOR 0 _Startup /* Reset vector: this is the default entry point for an application. */
Let me know if it helps!
Best Regards,
Carlos Mendoza
Technical Support Engineer