[Exception in LispSymbol]: Undefined symbol
[backtrace]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(lang_Exception__Exception_addBacktrace_impl+0x48)[0x433314]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(lang_Exception__Exception_addBacktrace+0x20)[0x4337f4]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(lang_Exception__Exception_throw_impl+0x24)[0x433742]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(lang_Exception__Exception_throw+0x23)[0x433885]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(lang_Exception__raise_withClass+0x2b)[0x4342c0]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(source_runtime_LispSymbol__LispSymbol_evaluate_impl+0x76)[0x429df3]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(source_runtime_LispValue__LispValue_evaluate+0x2b)[0x427115]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp(main+0x16b)[0x426fac]
/lib/libc.so.6(__libc_start_main+0xfd)[0x2b6350341c4d]
/home/nick/dev/ruby/duckinator/lixpbot2/custom/../lixp/lixp[0x426c39]