What is this error... ?
$ echo "panic: Devel::DProf inconsistent subroutine return at /usr/loc
+al/share/perl/5.10.0/JSON.pm line 54." | splain
panic: Devel::DProf inconsistent subroutine return at
/usr/local/share/perl/5.10.0/JSON.pm line 54 (#1)
(P) Devel::DProf called a subroutine that exited using goto(LABEL)
+,
last(LABEL) or next(LABEL). Leaving that way a subroutine called f
+rom
an XSUB will lead very probably to a crash of the interpreter. Thi
+s is
a bug that will hopefully one day get fixed.
So maybe check if that is what's happening at .../JSON.pm line 54