Hi Philipp,

it sounds like the all.bvars file has not been created correctly. Did you 
get an error message when running concat_bvars? I would run the previous 
steps again, as concat_bvars may generate an empty file even when it has 

Hope that helps,

----- Original Message ----- 
From: "Philipp Thomann" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, June 06, 2010 11:40 AM
Subject: [FSL] FSL FIRST Structural Analysis Practical

Dear All, I just attended the FSL+FS course in Heidelberg which was really 

I've downloaded the FSL software and the tutorial data sets for Mac (I'm 
having a MacBook Pro Mac OS X Version 10.6.3) and I am running through some 
practicals again. I followed the FIRST instructions step by step and met a 
problem during the vertex analysis after entering the command

first_utils --usebvars --vertexAnalysis -i all.bvars  -o 
diff_con0_dis1_L_Hipp_mni -d design_con0_dis1.mat --useReconMNI

the bash simply says:

Cannot open file.
Cannot open file.

I already checked that the all.bvars file has been successfully created in 
the previous step.

Any Ideas?

Thanks Philipp