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Hi Tim,

Thank you for your reply. 
Yes, the fsaverage4 folder has been copied from $FREESURFER_HOME/subjects to $SUBJECTS_DIR. But it didn't work. 
Do you have any other idea?

Chenfei
------------------ 原始邮件 ------------------
发件人: "Tim Schäfer"<ts+ml@rcmd.org>;
发送时间: 2019年3月3日(星期天) 晚上11:15
收件人: "Freesurfer support list"<freesurfer@nmr.mgh.harvard.edu>;
主题: Re: [Freesurfer] unable to map surface to fsaverage4

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Dear Chenfei,

To successfully use the 'recon-all -qcache' command you listed, you would need to have the fsaverage4 subject in your $SUBJECTS_DIR. Did you copy it there before running the command? You can find it in $FREESURFER_HOME/subjects/fsaverage4.


Best,

Tim

> On March 2, 2019 at 2:57 PM Chenfei YE <chenfei.ye@foxmail.com> wrote:
>
>
>         External Email - Use Caution       
>
> Hi,
>
> I'm following the process described in https://www.cloudneuro.org/ to predict age based on cortical thickness of an individual brain.
> I cannot map surface to the fsaverage4 template by the 2nd command:
> recon-all -s subject.id -qcache -target fsaverage4The error was shown like
> mri_surf2surf: could not read su​rface ./test2/surf/lh.fsaverage4.sphere.regNo such file or directory
>
>
>
> I tried to change the 1st command like:
> recon-all -i input_image -s subject.id -all -target fsavearge4But still the same error.
>
>
> My FreeSurfer version is 6.0.0. Maybe that's why I cannot successfully run the code in https://www.cloudneuro.org/. But is there any way to solve this problem? Thank you.
>
>
>
> Chenfei_______________________________________________
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> Freesurfer@nmr.mgh.harvard.edu
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