SPM 8 Errors: "failed model estimation" and "reference to nonexistent field vbeta"

When trying to run models I keep getting this error message for specific participants using certain conditions.

Running 'fMRI model specification'

SPM8: spm_fMRI_design (v4185)                      09:44:35 - 12/08/2015
========================================================================
Saving fMRI design                      :               ...SPM.mat saved

SPM8: spm_fmri_spm_ui (v4421)                      09:44:35 - 12/08/2015
========================================================================
Mapping files                           :                        ...done
Calculating globals                     :                        ...done
Saving SPM configuration                :               ...SPM.mat saved
Design reporting                        :                        ...done
Saving SPM configuration                :               ...SPM.mat saved
Done
Done    'fMRI model specification'
Running 'Model estimation'

SPM8: spm_spm (v4515)                              09:45:10 - 12/08/2015
========================================================================
Initialising parameters                 :                        ...done
Output images                           :                 ...initialised
Plane  68/68 , block   1/1              :                        ...done
Failed  'Model estimation'
Reference to non-existent field 'Vbeta'.
In file "/usr/local/spm8/config/spm_run_fmri_est.m" (v4403), function "spm_run_fmri_est" at line 96.

Running 'Contrast Manager'
   Changing directory to: /xxxx/
Failed  'Contrast Manager'
Error using spm_run_con (line 37)
This model has not been estimated.
In file "/usr/local/spm8/config/spm_run_con.m" (v3993), function "spm_run_con" at line 37.

The following modules did not run:
Failed: Model estimation
Failed: Contrast Manager

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Answer 1

[Walter Roberson]

This should be investigated with the SPM people as it is an issue with their code.

It appears that your mask does not select any voxels. see https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=spm;9797955f.0906

[student]

I also meet this problem.How can I solve it ?

[Walter Roberson]

... make sure that your ROI selects some voxels.