the project works well now, the elf file was generated successfully,after changing the sdk path, c99 and link file
but the tips about sdk2.0 path is not exist is disturbing me how could I remove it
solve it by delete the SDK description in that file".settings/com.freescale.s32ds.cross.sdk.support.prefs"
and I also delete the SDK description in cproject file ,but I don`t know whether it is necessary