Problems with Eclipse

Hi Sap Guru,
Forgive my bad English.
I decided to switch to Eclipse. I have scrupulously followed the procedures described in qesto link.
AiE easy installation - ABAP Development - SCN Wiki ( Thanks Gregor Wolf for nice job ).
I installed correctly the new packages ADT 2.19 on Eclipse Juno.
Then when i try to connect to SAP ECC6 Ehpt6 i have this message:
An internal error occurred during: "Reading repository objects".
com.sap.adt.communication.exceptions.SystemFailureException: System failure: "The ASSERT condition was violated." (For detailed information, check the generated short dump in transaction ST22 of system "DEV"); Destination data=DEV_800_dev001_en [client=800, language=EN, systemConfiguration={null} | sapbox | null | DEV | null | null | null | null | null | null | SNC_UNAVAILABLE | sapbox | 00 | , user=DEV001]
------------ Request -----------------------
POST /sap/bc/adt/repository/nodestructure?parent_type=DEVC HTTP/1.1
X-sap-adt-profiling: server-time
Where is the problem?
Thanks
Vincent

Hi Florian,
the project is created successfully.
the error occurs when I try to access the System Library.
ST22
you must excuse me if my information is not sufficiently clear, it is the first time that I apply this procedure.
Should be activated SNC on the server? Could this be the error?
Regards
Vincent

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