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JuliaPOMDP / SARSOP.jl

Julia package that wraps the SARSOP software for solving POMDPs/MDPs
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Could not spawn -- no such file or directory #19

Closed ajkeith closed 6 years ago

ajkeith commented 6 years ago

I posted this to a pomdp-julia-users google group as well, not sure which place is more appropriate. Based on the discussion there, it seems like this was a known issue that has already been resolved on windows, so maybe my installation is incorrect and this isn't actually an issue.

Here's the code I'm trying to run from the crying babies demo from POMDPs.jl:

using POMDPs using POMDPModels

POMDPs.add("SARSOP") using SARSOP

bp = BabyPOMDP() up = BabyBeliefUpdater(bp) solver = SARSOPSolver() p = solve(solver, bp)

and the error is:

could not spawn 'C:\Users\op\AppData\Local\JuliaPro-0.6.2.2\pkgs-0.6.2.2\v0.6\SARSOP\deps\appl\src\pomdpsol' model.pomdpx --output out.policy: no such file or directory (ENOENT) in solve at SARSOP\src\solver.jl:94 in #solve#5 at SARSOP\src\solver.jl:99 in run at base\process.jl:650 in #spawn#375 at base\process.jl:511 in setup_stdio at base\process.jl:499 in #376 at base\process.jl:512 in _jl_spawn at base\process.jl:360

MaximeBouton commented 6 years ago

I think this is due to the appl folder being named " appl-0.96" on windows.

This should be fixed by https://github.com/JuliaPOMDP/SARSOP.jl/commit/bfa0c2894773e1d33edf2e9105ed6a451becc5f1 I included a renaming of the folder in the build script of the package. Can you pull the latest version of SARSOP.jl and let us know if that worked? I will wait a bit before closing the issue.

ajkeith commented 6 years ago

Thanks for the speedy response!

I pulled the current version and got these build errors (I think I might have had the same build errors for the older version too, I'm not sure). It looks like the zip file name in the code matches that actual zip file name in the deps folder.

Does the julia run function just send a command to the command line? I went into the command line, cd'd to the deps folder, then ran "unzip appl-0.96win.zip" and got the following error: "'unzip' is not recognized as an internal or external command, operable program or batch file."

==========================================[ ERROR: SARSOP ]==========================================

LoadError: could not spawn unzip appl-0.96win.zip: no such file or directory (ENOENT) while loading C:\Users\op\AppData\Local\JuliaPro-0.6.2.2\pkgs-0.6.2.2\v0.6\SARSOP\deps\build.jl, in e xpression starting on line 17

=====================================================================================================

==========================================[ BUILD ERRORS ]===========================================

WARNING: SARSOP had build errors.

On Fri, Mar 9, 2018 at 10:53 PM, Maxime notifications@github.com wrote:

I think this is due to the appl folder being named " appl-0.96" on windows.

This should be fixed by bfa0c28 https://github.com/JuliaPOMDP/SARSOP.jl/commit/bfa0c2894773e1d33edf2e9105ed6a451becc5f1 I included a renaming of the folder in the build script of the package. Can you pull the latest version of SARSOP.jl and let us know if that worked? I will wait a bit before closing the issue.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/JuliaPOMDP/SARSOP.jl/issues/19#issuecomment-372000275, or mute the thread https://github.com/notifications/unsubscribe-auth/AZgp56gqmiKLFv134dhk5Fo3vMY1OTPiks5tc04mgaJpZM4Skta7 .

mykelk commented 6 years ago

I think you need unzip on your Windows path. You'll need to add it and then restart Julia from a new terminal.

ajkeith commented 6 years ago

Ah okay, sounds like a setup on issue on my end. Thanks for the info.

If you have any references on how to add unzip to the windows path, it would be much appreciated - this is unfamiliar territory for me. (I did some googling, but I've only had luck finding info for separate tools like 7-zip rather than the native unzip in windows 10).