5ttgen: [ERROR] Atlases required for FSL's FIRST program not installed

1

Hi mrtrix3 team,
I have run mrtrix3 commands in ubuntu 14.04 before. Now I have changed my system and running Mrtrix3 in ubuntu 16.04 system and getting error : 5ttgen: [ERROR] Atlases required for FSL’s FIRST program not installed; Please install fsl-first-data using your relevant package manager. I have installed FSL package, updated FSLDIR but error is there. What is the relevant package manager to install fsl-first-data? Any help will be appreciated. Thank you!

2

Hi @Sarbani,

Whatever mechanism you are using to install FSL should also give you the capability to install the fsl-first-data package. If you’re using NeuroDebian, it looks like fsl-first-data hasn’t been added to the list of available packages for 16.04, even though I wouldn’t expect it to be so distribution-dependent. In that case, you can try uninstalling fsl-core and installing fsl-complete instead, which includes all optional data associated with the FSL package.

Rob

5

Hi @rsmith

I encounter the exact same error here. I’m running on ubuntu 20. I couldn’t install fsl-complete as it reports:

Package fsl-complete is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'fsl-complete' has no installation candidate

Is there any substitudes?