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hi everyone, i have succesfully managed to download freesurfer with ubuntu 22 on a virtual machine. i've tried some tutorials and everything is working fine. now i am trying to run my first recon-all, but this is the error I get:

-------- freesurfer-linux-ubuntu22_x86_64-7.4.1-20230614-7eb8460 -------- Setting up environment for FreeSurfer/FS-FAST (and FSL) FREESURFER_HOME /usr/local/freesurfer/7.4.1 FSFAST_HOME /usr/local/freesurfer/7.4.1/fsfast FSF_OUTPUT_FORMAT nii.gz SUBJECTS_DIR /usr/local/freesurfer/7.4.1/subjects MNI_DIR /usr/local/freesurfer/7.4.1/mni paolasofia@Freesurfer-ub22:~$ recon-all -subject angcher.02.04.91.12.09.22 -sd /usr/local/freesurfer/7.4.1/subjects -i /home/paolasofia/DICOM.ANG.CHER.2.4.91/DICOM/./1.3.12.2.1107.5.2.19.146011.2022091213511174521774361.dcm -i /home/paolasofia/DICOM.ANG.CHER.2.4.91/DICOM/./1.3.12.2.1107.5.2.19.146011.2022091213511942168418847.dcm -i /home/paolasofia/DICOM.ANG.CHER.2.4.91/DICOM/./1.3.12.2.1107.5.2.19.146011.2022091213511945768618951.dcm -all mkdir: cannot create directory '/usr/local/freesurfer/7.4.1/subjects/angcher.02.04.91.12.09.22': Permission denied fs-check-version --s angcher.02.04.91.12.09.22 --o /tmp/tmp.VZQFHn ERROR: cannot find angcher.02.04.91.12.09.22 recon-all: version check failed fs-check-version --s angcher.02.04.91.12.09.22 --o /tmp/tmp.VZQFHn

how could i solve this problem? thanks in advance