Update.

config.asy

@@ -1,3 +1,3 @@
 import settings;
-settings.outformat = "svg";
+settings.outformat = "pdf";
 //settings.tex = "pdflatex";

lib_jl.asy

@@ -1,4 +1,5 @@
 import graph_pi;
+import graph3;
 import gm_probabilitytree;
 import gm_tableaux;