I'm getting this error:

S2 Compiler Output at Tue Nov 30 13:14:36 2004

Error compiling layer:

Compile error: line 100, column 17: Unknown local variable $k1Msrc

S2::NodeVarRef, S2/NodeVarRef.pm, 178

S2::NodeVarRef, S2/NodeVarRef.pm, 151

S2::NodeTerm, S2/NodeTerm.pm, 162

S2::NodeTerm, S2/NodeTerm.pm, 66

S2::NodeSum, S2/NodeSum.pm, 65

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeSum, S2/NodeSum.pm, 64

S2::NodeTerm, S2/NodeTerm.pm, 76

S2::NodeTerm, S2/NodeTerm.pm, 66

S2::NodeExpr, S2/NodeExpr.pm, 46

S2::NodePrintStmt, S2/NodePrintStmt.pm, 55

S2::NodeStmtBlock, S2/NodeStmtBlock.pm, 101

S2::NodeFunction, S2/NodeFunction.pm, 230

S2::Checker, S2/Checker.pm, 339

S2::Compiler, S2/Compiler.pm, 34

It's probably something horribly obvious that'll make you all go "Well, duh." but still .. help? :P