# MNE-visual\_92\_categories-data\\sample\_subject\_0\_raw-1.fif does not exist

**URL:** <https://mne.discourse.group/t/mne-visual-92-categories-data-sample-subject-0-raw-1-fif-does-not-exist/5204>\
**Category:** Support & Discussions\
**Tags:** mne-datasets\
**Created:** [July 2, 2022, 6:37am UTC](https://mne.discourse.group/t/mne-visual-92-categories-data-sample-subject-0-raw-1-fif-does-not-exist/5204 "2022-07-02T06:37:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wht9975](https://avatars.discourse-cdn.com/v4/letter/w/258eb7/32.png) [@wht9975](https://mne.discourse.group/u/wht9975)\
**Post date:** [July 2, 2022, 6:37am UTC](https://mne.discourse.group/t/mne-visual-92-categories-data-sample-subject-0-raw-1-fif-does-not-exist/5204/1 "2022-07-02T06:37:40Z")

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I downloaded the jupyter nobebook from [Representational Similarity Analysis — MNE 1.0.3 documentation](https://mne.tools/stable/auto_examples/decoding/decoding_rsa_sgskip.html#sphx-glr-auto-examples-decoding-decoding-rsa-sgskip-py).

When I run those code,it make a mistake, that indicates  
‘ValueError: Split raw file detected but next file C:\Users\18469\mne\_data\MNE-visual\_92\_categories-data\sample\_subject\_0\_raw-1.fif does not exist. Ensure all files were transferred properly and that split and original files were not manually renamed on disk (split files should be renamed by loading and re-saving with MNE-Python to preserve proper filename linkage).’  
But i didnt modify the code, everything is similar with example code. then i checked the floder ''visual\_92\_categories-data", it only have 4 data :  
sample\_subject\_0\_tsss\_mc.fif;  
sample\_subject\_1\_tsss\_mc.fif  
sample\_subject\_2\_tsss\_mc.fif  
sample\_subject\_3\_tsss\_mc.fif  
but not file like ‘sample\_subject\_0\_raw-1.fif’  
Is there something wrong? Wondering if anyone can help me 🥺

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<div class="post-metadata">

**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\
**Post date:** [July 2, 2022, 7:19pm UTC](https://mne.discourse.group/t/mne-visual-92-categories-data-sample-subject-0-raw-1-fif-does-not-exist/5204/2 "2022-07-02T19:19:38Z")

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Hello @wht9975, there is indeed a problem with the dataset. To work around this, for now you can just change lines 83–84 in the example from

```python
raws = [read_raw_fif(fname % block, verbose='error')
        for block in range(n_runs)] # ignore filename warnings

```

to

```python
raws = [read_raw_fif(fname % block, verbose='error', on_split_missing='warn')
        for block in range(n_runs)] # ignore filename warnings

```

to avoid the error.

Best wishes,  
Richard

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<div class="post-metadata">

**Author:** ![wht9975](https://avatars.discourse-cdn.com/v4/letter/w/258eb7/32.png) [@wht9975](https://mne.discourse.group/u/wht9975)\
**Post date:** [July 3, 2022, 3:55am UTC](https://mne.discourse.group/t/mne-visual-92-categories-data-sample-subject-0-raw-1-fif-does-not-exist/5204/3 "2022-07-03T03:55:22Z")

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Thank you so much for your help 🫡 🫡