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Issues Running Experiment in Open Sesame

Hi there,

I am looking for some help with an issue running an experiment that was built on Open Sesame(3.2.5) on a newer version of Open Sesame (3.2.8).

We are using a Mac Mini running OS El Capitan and an EyeLink eye tracker. Open Sesame is the most up to date version (3.2.8). I am trying to run an open sesame experiment that was created in version 3.2.5. The experiment will run the instruction section, but after this the experiment crashes and ends itself before reaching the practice and testing stages and prints out this error:

Imageio: 'ffmpeg-osx-v3.2.4' was not found on your computer; downloading it now.

Error while fetching file: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:726)>.


The program also tells me, in a later message, that it:

Failed to read .xlsx file: /var/folders/cb/nj7_6t9x7lb6tx5d9l_tl_cm0000gn/T/tmpP2xOHx.opensesame_pool/practice_list.xlsx


I was wondering if anyone could help clear this up for me! Thanks!

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