Error message in loading tutorial_eeg.bin file from the EEG/epilepsy tutorial

Hi,

i am currently doing the tutorial on eeg/epilepsy. I go trought the steps to laod the anatmical data it goes well. I get to the step called link the recordings. it requires review raw file, ask to pick the "EEG: Deltamed Coherence-Neurofile(*.bin)" file format and to load the file : sample_epilepsy/data/tutorial_eeg.bin. At that point i get an error message:


i wonder i someone had a fix for that.

thank you

Hello,
I have made a little change in the code.
Can you update Brainstorm and try again ? (menu Help > Update Brainstorm)
Francois

i have updated brainstorm.
i deleted the protocol a was working with and started from scratch.

When i try to load the file, i get this message:


then the file appears in the tree, but without a node:


i then relaod the file from the right-click menu and the node appears, with a link to a raw file.


but when i double click on the file, i get this message:


And I guess the size of the file that is created is 0Kb (check this from your file explorer). Brainstorm cannot write files in this folder…

  1. Make sure that you have enough space on available on this drive (“df” command), and the appropriate rights.
  2. If you do, make sure Matlab can write a file in this folder (with Matlab save a random large matrix file in this folder and then delete it)
  3. If you cannot get anything to work: start over. Delete everything and create a folder with a different protocol name.

Francois

the size of the file in the db is 5.3kb, compared to the original file of 75Mb. im sure i have the space on the disk, but i dont have full rights on the computer. I will check with my admin for that.

When you say start over, do you mean create a new db file and change the path to the new one in brainstorm? because i deleted the full protocol and starting it over before sending the images.

If it create a file of a few Kb, it is working correctly.
This is just a link to the original file, the size should be few Kb. And if you can create the file, then you have the appropriate rights…
Could you go through all the 12+3 introduction tutorials without any problem?

i did. i didn’t have any problems during the basic tutorials.

Make sure with your system admin you are not exceeding your quota…

the problem seems to be in the link to raw file. the file can be imported in braistorm. i have linked to raw fil in other tutorials, so maybe it is specific to that kind of file

Can you link it to your database using another user on the same system?
And/or using another computer on the same network?

i tried it on another system. the first error still appeard. i havent tried the fix on another system.

Hello,
Sorry for the response delay…

I could not identify anything causing this problem.
What version of Matlab are you using?
Can you please copy-paste the output you get when you type “ver” in your Matlab command window?

If you’re familiar with Matlab, could you try some debugging of this function?
Place a breakpoint at the beginning of function in_fopen_deltamed.m (click in the margin on the left side of the editor), try to import the file and then execute the function line by line. At the end of this function, resume the execution.
This would use debugging versions of the Matlab libraries and could have a different effect.

Francois

Here my matlab version:

MATLAB Version: 8.5.0.197613 (R2015a)
MATLAB License Number: 1075129
Operating System: Linux 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64
Java Version: Java 1.7.0_60-b19 with Oracle Corporation Java HotSpot™ 64-Bit Server VM mixed mode

MATLAB Version 8.5 (R2015a)
Parallel Computing Toolbox Version 6.6 (R2015a)
Signal Processing Toolbox Version 7.0 (R2015a)
Statistics and Machine Learning Toolbox Version 10.0

since then i have started working on something else. And im not very familiar with matlab debugging. I will try to look at it as soon as i can.

I tested on a similar combination of Matlab version / operating system and it was working well…

Well, i guess it was just for me. we did test it on another linux machine, latest version of brainstorm but i don’t know the matlab version.

thank you for your time