Can't build atomspace: BackwardChainerUTest fails

[Masayuki Hatta]

Hi,

I'm now trying to build atomspace on Debian sid, but one of tests (BackwardChainerUTest) fails.

I think the following is the culprit, but can't figure out what and why.  Any help appreciated.

Best regards,
MH

(snip)

/home/mhatta/work/Debian/atomspace/atomspace-0.0~git20170802.d79fd34/tests/rule-                                                                                        [94/1850]
engine/BackwardChainerUTest.cxxtest:57: Error: Test failed: Backtrace:                                                                                                          
In ice-9/boot-9.scm:                                                                                                                                                            
 160: 8 [catch #t #<catch-closure f1aa730ac0> ...]                                                                                                                              
In unknown file:                                                                                                                                                                
   ?: 7 [apply-smob/1 #<catch-closure f1aa730ac0>]                                                                                                                              
In ice-9/boot-9.scm:                                                                                                                                                            
 160: 6 [catch #t #<catch-closure f1aa730980> ...]                                     
In unknown file:                                                                       
   ?: 5 [apply-smob/1 #<catch-closure f1aa730980>]                                     
In ice-9/eval.scm:                                                                     
 386: 4 [eval # ()]                                                                    
 393: 3 [eval #<memoized gt-zero-confidence> ()]                                       
In unknown file:                                                                       
   ?: 2 [memoize-variable-access! # #]                                                 
In ice-9/boot-9.scm:                                                                   
 105: 1 [#<procedure f1aa4eb480 at ice-9/boot-9.scm:100:6 (thrown-k . args)> unb       
ound-variable ...]                                                                     
In unknown file:                                                                       
   ?: 0 [apply-smob/1 #<catch-closure f1aa730940> unbound-variable ...]                
                                                                                       
ERROR: In procedure apply-smob/1:                                                      
ERROR: Unbound variable: gt-zero-confidence                                            
ABORT: unbound-variable                                                                
 (/home/mhatta/work/Debian/atomspace/atomspace-0.0~git20170802.d79fd34/opencog/g       
uile/SchemeEval.cc:1050)                                                               
.....                                                                          
Failed 1 and Skipped 0 of 16 tests                                             
Success rate: 93%

(snip)

[Linas Vepstas]

https://github.com/opencog/atomspace/issues/1318

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[Linas Vepstas]

I just pushed a change that *might* fix this. At the moment, this failure is "normal".  --linas

On Wed, Aug 2, 2017 at 4:13 AM, Masayuki Hatta <mha...@gmail.com> wrote:

--

[Masayuki Hatta]

Hi,

Thanks for your effort, but seems it doesn't work.  That test still fails in the same way.

Best,
MH

2017年8月3日木曜日 14時19分52秒 UTC+9 linas:

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[Linas Vepstas]

The problem is that it does not fail for Nil, who is the maintainer of that code, and it does not fail for me, so I can't easily debug it either.  Now we could set up a test machine but this takes time and effort. We're pretty sure that the backwards chainer works, and that it's really just a bug with the unit test.  Give your error message, is some bug involving the export of symbols from scheme.   Its some configuration problem.  which is why fixing it has not been a high priority.

--linas