Can you check your (Windows?) environement variables?
The should point to:
KSDK_PATH=C:\Freescale\KSDK_1.0.0-Beta
KSDK_PATH_1_0_0_BETA=C:\Freescale\KSDK_1.0.0-Beta
And you should check that you have
Kinetis_SDK_Version.xml
in
C:\Freescale\KSDK_1.0.0-Beta\doc
(I have mine attached).
do you have something different?