[Gate-users] Command not found

[viraj sawant]

Dear Gate users
i just install the Vgate 8.0 and trying to do my first simulation using
gate user guide.following steps as given in the guide I come across few
eros listed below
gate/geometry/setMaterialDatabase data/GateMaterials.db
[G4-cerr]
-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : GateMDBFile
      issued by : GateMDBFile::GateMDBFile
Could not find material database file 'data/GateMaterials.db'
*** Fatal Exception *** core dump ***
[G4-cerr]  **** Track information is not available at this moment
[G4-cerr]  **** Step information is not available at this moment
[G4-cerr]
-------- EEEE -------- G4Exception-END --------- EEEE -------

[G4-cerr]
[G4-cerr] *** G4Exception: Aborting execution ***
Aborted (core dumped)
kindly please help.
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