load_xdf() suddenly not properly working anymore about labstreaminglayer

[brainybrown2]

Dear colleagues,
many thanks for your quick replies.

@cll008: Indeed the problems seemed to be related the load_xdf_innerloop.mex file, which was an completeley empty file (presumbably, because Matlab tried to download this file, but did not suceed with this?).

@agricolab: I could now resolve the problem by again downloading the whole xdf-Matlab module (https://github.com/xdf-modules/xdf-Matlab.git), replacing this module by our old xdf-Matlab module, and immediateley commenting out the code lines L238-259 (https://github.com/xdf-modules/xdf-Matlab/blob/5b27b8cf9577dd903cbfb5386ffbf04c0441eddb/load_xdf.m#L238-L259) within the load_xdf() file, as discussed under sccn/xdf#50.

It is important that one first comments out these lines, before one consults load_xdf(), because otherwise Matlab again tries to download this .MEX file, and thus again corrupts the function.

Many thanks for your help.

[cll008]

Hi there, Do you have multiple copies of load_xdf in your MATLAB scope? Seems like the `load_xdf_innerloop` MEX file may be missing. Good luck, Clement Lee Applications Programmer Swartz Center for Computational Neuroscience Institute for Neural Computation, UC San Diego 858-822-7535

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On Tue, Feb 18, 2020 at 8:44 AM brainybrown2 ***@***.***> wrote: Dear colleagues, we have been using LSL since a while and its a really awesome tool! Many thanks for that! Since a few days, however, we are encountering a really strange problem on all of our lab computers: When trying to load in some arbitrary .xdf-file into Matlab (we use Matlab R2018b) with load_xdf(), the following warning always pops up: Warning: Escaped character '\U' is not valid. See 'doc sprintf' for supported special characters. In load_xdf (line 327) Warning: Invalid MEX-file 'C: In load_xdf (line 327) And as a consequence, only the metadata of the .xdf-file become correctly read in, while no time_series and time_stamps is read in. The strange thing is that we are not aware of any changes made to our MATLAB viewer folder. Since we urgently need the load_xdf() function for any of our experiments, we would be very thankful for any advise on how to solve this problem. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#48?email_source=notifications&email_token=AITC3JVQZEXC4BQIHIZCJQLRDQF5HA5CNFSM4KXIHFHKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4IOMBHYA>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AITC3JSHC6RVP4JBPEY2GADRDQF5HANCNFSM4KXIHFHA> .

[agricolab]

Dear @brainybrown2, thanks for this notice. This might be linked to sccn/xdf#50

[tstenner]

Warning: Escaped character '\U' is not valid. See 'doc sprintf' for supported special characters.

I guess there's something like C:\Users\… in there? The backslashes need to be either escaped (\\) or forward slashes (/)

[dmedine]

This is the same issue as this one: sccn/xdf#50

I am going to close this as it pertains to load_xdf which is in another depository. Many people are going to get bitten by this. It needs to be attended to.