"Having a problem getting stan version" Matlab 2015a error about matlabstan HOT 28 CLOSED

Couple of quick checks:

1. does ProcessManager work? Try running a couple of the examples here: https://github.com/brian-lau/MatlabProcessManager
2. Do you have spaces in any of the directory names?

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Hi Brian,

1. Yes. ProcessManager works (I tried the first two examples you listed, and both are fine.)
2. Yes! I now moved cmdstan into a folder that does not contain a space in its name, and MatlabStan runs! Thanks!

(It still gives an error with the 8 schools example, that is now:

Stan is still working. You can either:

1. Use the peek method to get partial samples
2. Come back later, or
3. Attach a listener to the StanFit object.
   Attempt to reference field of non-structure array.
   Error in school_test (line 31)
   eta = fit.extract('permuted',true).eta;

But: I'm not sure if this issue is fatal, and I can think about it. (Ideas?) In any case, thanks a lot for your help!
-- Raghu

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I suspect that the 8 schools problem is due to the extract method getting called before sampling has finished. This would happen if the entire example was evaluated all at once. See here:
https://github.com/brian-lau/MatlabStan/wiki/Blocking-the-Matlab-command-line

if you want to extract in a script.

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Hi, I have the "space in path name" problem but because I am running off a second iMac HDD all paths have "Macintosh HD" in them. If I change this it will throw all sorts of things out of kilter. Is there a fix rather than just change/move?

many thanks

Rob Harrison
Sheffield UK

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Hi Rob

I did not find a simple way to do this. If I recall correctly, I couldn't figure out a way to escape spaces in the command that gets passed through Java.

I think 'Macintosh HD' is just a link to '/', so replacing your references with '/' may solve the problem?

-b

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Thanks for that Brian but it doesn;t recognise this at all (as below) - at least when I specify /Volumes/Macintosh HD/Users/ ... it gets into the try/catch section. My problem is that I boot and run apps from a SSD and have my user a/c (data etc.) on the HDD so everything needs the full path. Anyway, thanks for the prompt response - I'll keep on hacking!
Rob

Error using StanModel/set.stan_home (line 303)
Can't parse stan_home. Is it set correctly?

Error in StanModel (line 184)
self.stan_home = p.Results.stan_home;

Error in stan (line 108)
model = StanModel();

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Thanks for developing this amazing tool!
I have the same problem: cmdstan built and working (can use it with Rstan) but Matlab giving the following output

Having a problem getting stan version.
This is likely a problem with Java running out of file descriptors
Trying again.
Trying again.
Trying again.
Trying again.
Trying again.
Trying again.
Giving up.
Output argument "ver" (and maybe others) not assigned during call to "StanModel/stan_version".

Error in StanModel (line 194)
               ver = self.stan_version();

Error in stan (line 108)
   model = StanModel();

I don't have spaces in either the cmdstan install folder nor in the matlab stan folder.
Moreover my startup.m file contains the following line:
addpath C:\Users\grinaldi\Documents\MATLAB\stan

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Sorry, seems the error output got suppressed?

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Hi Brian, I've updated my post in case you didn't see!

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I've seen this problem occasionally, and it seems to be a Java-related issue (java is used for communicating with CmdStan). You may find some clues here:

https://github.com/brian-lau/MatlabProcessManager/wiki/Potential-gotchas#process-fails-to-start

although I don't know how to change things on Windows. If it's not too troublesome, can you try after a restart?

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Hi everyone,

I’ve tried to install and run MatlabStan (v. 2.7.0; cmdstan 2.14.0; operating system Operating System: Debian GNU/Linux 8 (jessie), Kernel: Linux 3.16.0-4-amd64)

After adding cmstan and ProcesManager (in addition to MatlabStan) to the MATLAB path, I get the same error some have reported before when testing the simple "eight schools" code:

??? Error using ==> StanModel>StanModel.set.stan_home at 311
Does not look like a proper stan setup

Note: ProcessManager runs properly (tested exampleListener & exitHandler(src,data))

Note 2: I edited stan_home.m in +mstan to include the proper directory

d='/home/myusername/eeg/matlab/bayesian/Stan/cmdstan';

Thanks for any advice!

ianthe00

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Hi,

Can you confirm that running the CmdStan example from the user's guide runs outside of matlab (ie, at the command line)?

-b

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Hi Brian,

thanks for the quick reply. I proceeded today to follow the cmdstan tutorial (Building cmdstan, compiling and executing a program etc) and it works fine from the command line.

After doing that, I tried again to use stan within MATLAB and now it finds the proper stan setup.
I have however other issues now (with the version of GLIBCXX in libstdc++.so.6) but I can solve this hopefully by using my other linux machine with the current 2016 MATLAB version.

Thanks for your help. So I guess that the issue was that I had not yet properly configured cmdstan from the command line (using make -j4 and so on)? Do you think it would be possible to explicitly mention this requirement here?

https://github.com/brian-lau/MatlabStan/wiki/Getting-Started

Thanks again

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Hi,

The wiki has been clarified. Regarding the GLIBCXX error, you may find a solution here:

https://github.com/brian-lau/MatlabStan/wiki/Solving-issues-with-GLIBCXX-and-libstdc

Thanks.

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Thanks so much!

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I am also having a problem getting started running Stan from Matlab. I compiled cmdstan, but when i try to run any of the examples, I get an error. I have stan_home in /MatlabStan-2.7.0.0/+mstan, and I have the directory in stan_home set to my matlab folder, which also contains cmdstan-2.14.0

I get the following error:

Error using StanModel/set.stan_home (line 311)
Does not look like a proper stan setup

Error in StanModel (line 184)
self.stan_home = p.Results.stan_home;

Error in stan (line 108)
model = StanModel();

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stan_home should be set to the path where the CmdStan is, which is where you built CmdStan, not necessarily where you put the Matlab files.

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What version of Matlab are you using? Does the eight schools example from the readme run?

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Are you able to run CmdStan examples outside of Matlab?

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I'm also "Having a problem getting stan version" when trying to run the eight schools example. For whatever it's worth, processManager seems to work if I enter

p = processManager('command','nslookup www.google.com');

I'm on Windows 10 and MATLAB 2017b.

Full error readout follows.

Thanks in advance!

Having a problem getting stan version.
This is likely a problem with Java running out of file descriptors
Trying again.
Trying again.
Trying again.
Trying again.
Trying again.
Trying again.
Giving up.
Error using processManager/start (line 366)
Java exception occurred:
java.io.IOException: Cannot run program "C:\Stan\cmdstan-2.17.1\bin\stanc" (in directory
"N:\docs\Stan\MatlabStan-2.15.1.0"): CreateProcess error=2, The system cannot find the file specified

at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)

at java.lang.Runtime.exec(Runtime.java:620)

at java.lang.Runtime.exec(Runtime.java:450)

Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified

at java.lang.ProcessImpl.create(Native Method)

at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)

at java.lang.ProcessImpl.start(ProcessImpl.java:137)

at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)

... 2 more

Error in processManager/set.command (line 216)
self.start();
Error in processManager (line 181)
self.command = p.Results.command;
Error in StanModel/stan_version (line 843)
p = processManager('id','stanc version','command',command,...
Error in StanModel (line 196)
ver = self.stan_version();
Error in stan (line 108)
model = StanModel();

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@mfalcy not sure if you ever solved your issue, but I was having a similar problem and none of the above solutions solved it. I managed to localize the issue to line 850 of StanModel.m. It was not appropriately extracting the stanc version, so I just hardcoded it in (ver = '2.21.0') and it works. I'm sure this can be solved much more elegantly so it isn't hard coded.

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Hello,

I also have the same problem as mfalcy. I have Matlab2019a and Windows10. I did the above recommendations, but none of them work.
I really appreciate if anyone could help me to find the solution.

thanks in advance.
Saideh

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