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Dear Gate users<br>
<br>
I have installed Gate 9.0 version in my PC (with the geant4.10.06.p1 patch). I am interested to run a simulation that works with Optical Photons. Even though I have activated flag for optical photons during the compiling process, Gate does not allow me to introduce surfaces command (that I have tested in a previous Gate version). The error that it send to me is:<br>
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[G4-cerr] ***** Illegal application state </gate/crystal/surfaces/insert scanner> *****<br>
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If anyone can help me with this problem I will be very grateful<br>
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Regards<br>
<br>
Gabriel<br>
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