SVAL LOOKUP ERROR

Hello, I am rather new to SAM.

I am trying to run SAM for a Fresnel simulation and encounter this error when i run the simulation.This is foillowed by another 110 errors related to TRNSYS column : "xxxx" missing variable : xxxxxxx

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SAMSIM MESSAGES

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MSG[0]: SVAL LOOKUP ERROR trnsys.user_trdsrc
MSG[1]: SVAL LOOKUP ERROR trnsys.user_exe
MSG[2]: SVAL LOOKUP ERROR trnsys.user_args
MSG[3]: Error reading hourly output file.
MSG[4]: Error reading monthly output file.
MSG[5]: Error reading annual output file.
MSG[6]: SVAL LOOKUP ERROR trnsys.target_hourly_folder
MSG[7]: TrnModel Notice: Deleting file 'C:/users/vikram/Local Settings/Application Data/SAMEXE/SAMEXE-vikram-INST1-2011.12.2/simdata/test_csp/BASE/linfres.hourly.out'

I get the same error when i try and load the sample Fresnel Lens data and run the simulation.

What am I doing wrong?

One possibility is that there is a problem with the weather file. Would you mind replying to this post with an attached copy of the .zsam file and weather file that cause the error?

Best regards,
Paul.