On 20/06/18 11:49, Bình Dương, Tran wrote:
> Dear Sirs,
>
>>> Is this the case?
>>> What does your executable zip file look like? 
> I uploaded some problems from ICPC source, some of them has included with a checker.
> I uploaded a checker executable file for a problem (I attached it below).  
>
> When a contestant has done his work and submit to the problem, a judgehost download it and checker executable to execute the evaluation. At that time this error occured.
> I think that the problem is the lacking of permission for executing for 'build' and 'run' file.
> But I don't know how to fix it

Indeed. You should unzip the files, add the executable permission with

chmod a+x build run

and then zip those files again, and upload the zip on the executable page. That will replace the files.

Jaap



> 2018-06-19 16:24 GMT+07:00 Thijs Kinkhorst <thijs@kinkhorst.com <mailto:thijs@kinkhorst.com>>:
>
>     On Tue, June 19, 2018 03:35, Bình DÆ°Æ¡ng, Tran wrote:
>     > Dear Sirs,
>     >
>     > When a contestant submit his work to server for judgement and the problem
>     > have a checker need to execute to compare the result, I got following
>     > message, I don't know how to solve this problem and how to prevent it
>     > happen again.
>
>     > [Jun 18 20:34:28.523] judgedaemon[12171]: fetching executable failed
>     > for compare script 'checker_disarray':Invalid executable, file 'build'
>     > exists but is not executable.
>
>     Is this the case?
>
>     What does your executable zip file look like?
>
>
>     Thijs
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