When running ros install arrival , I get an error related to log4cl

[aymeric75]

Hello,

When running ros install arrival , I get an error related to log4cl

To load "arrival":
  Load 1 ASDF system:
    arrival
; Loading "arrival"
..[1/3] System 'arrival' found. Loading the system..
; 
; caught ERROR:
;   READ error during COMPILE-FILE:
;   
;     Lock on package SB-C violated when interning LAMBDA-PARENT while in package
;     LOG4CL-IMPL.
;   See also:
;     The SBCL Manual, Node "Package Locks"
;   
;     (in form starting at line: 99, column: 0, position: 3779)
Aborted during step [1/3].
Unhandled UIOP/LISP-BUILD:COMPILE-FILE-ERROR in thread #<SB-THREAD:THREAD tid=80526 "main thread" RUNNING
                                                          {10044A0113}>:
  COMPILE-FILE-ERROR while
  compiling #<CL-SOURCE-FILE "log4cl" "src" "naming-sbcl">

Any idea where this comes from ?

Thanks

[scymtym]

Please note that this repository is not maintained anymore. Maintenance of this library is performed in the https://github.com/sharplispers/log4cl fork.

I don't know what arrival is or how ros loads it but I suspect that the problem stems from the fact that log4cl uses internal interfaces of SBCL which changed in recent SBCL versions. The two solutions I can think of are

1. Use an older SBCL version
2. Use the master version of log4cl (from the https://github.com/sharplispers/log4cl fork)

Hope this helps.