hello world - generated code compilation error

Hi everybody,

I'm starting these days to use MPS, and of course as a first thing I tried

to build the Hello World!

I'm following the Jetbrain's tutorial, but I get stuck on this:

- The language code is generated but there is a compilation error in line

6,1

" import jetbrains.mps.core.BaseConcept;"

- here is the description: [BTW what about adding the possibility to copy it

to clipboard? ;-) ]

cannot access jetbrains.mps.BaseConcept

bad class file: C:\.....\MPS\lib\mps.jar (jetbrains/...../BaseConcept.class)

class file has wrong version 49.0, should be 48.0

Please remove or make sure it appears in the correct subdirectory of the

classpath

What I'm using:

JIdea - 5.0.1 #3461

MPS - #220

jsdk - 1.4.2_08