fancy repl backtrace.

fancy repl backtrace

bakkdoor:~/projekte/fancy/fancy-lang[diff*]> fancy
An exception occurred running /home/bakkdoor/projekte/fancy/fancy-lang/bin/fancy
    Coercion error: nil.to_str => String failed (TypeError)

Backtrace:
                        Type.coerce_to at kernel/common/type.rb:22
             Kernel(Class)#StringValue at kernel/common/kernel.rb:112
                      File.expand_path at kernel/common/file.rb:360
                       main.__script__ at lib/compiler.fy:11
  { } in Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:168
  { } in Rubinius::BlockEnvironment#Block at boot/fancy_ext/block_env.rb:18
          Object(NilClass)#if_do:else: at lib/object.fy:70
              Object(Class)#unless:do: at lib/object.fy:148
  Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:173
  Fancy::CodeLoader.require: (fancy_require:) at lib/rbx/code_loader.fy:185
                       main.__script__ at lib/eval.fy:1
  { } in Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:168
  { } in Rubinius::BlockEnvironment#Block at boot/fancy_ext/block_env.rb:18
          Object(NilClass)#if_do:else: at lib/object.fy:70
              Object(Class)#unless:do: at lib/object.fy:148
  Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:173
  Fancy::CodeLoader.load_compiled_file (load_compiled_file:) at lib/rbx/code_loader.fy:134
                       main.__script__ at bin/fancy:20
      Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:67
      Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:91
               Rubinius::Loader#script at kernel/loader.rb:494
                 Rubinius::Loader#main at kernel/loader.rb:591
                 Rubinius::Loader.main at kernel/loader.rb:630
                     Object#__script__ at kernel/loader.rb:641

Caused by: undefined method `to_str' on nil:NilClass. (NoMethodError)

Backtrace:
  Kernel(NilClass)#to_str (method_missing) at kernel/delta/kernel.rb:85
                        Type.coerce_to at kernel/common/type.rb:20
             Kernel(Class)#StringValue at kernel/common/kernel.rb:112
                      File.expand_path at kernel/common/file.rb:360
                       main.__script__ at lib/compiler.fy:11
  { } in Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:168
  { } in Rubinius::BlockEnvironment#Block at boot/fancy_ext/block_env.rb:18
          Object(NilClass)#if_do:else: at lib/object.fy:70
              Object(Class)#unless:do: at lib/object.fy:148
  Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:173
  Fancy::CodeLoader.require: (fancy_require:) at lib/rbx/code_loader.fy:185
                       main.__script__ at lib/eval.fy:1
  { } in Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:168
  { } in Rubinius::BlockEnvironment#Block at boot/fancy_ext/block_env.rb:18
          Object(NilClass)#if_do:else: at lib/object.fy:70
              Object(Class)#unless:do: at lib/object.fy:148
  Fancy::CodeLoader.load_compiled_file:find_file: at lib/rbx/code_loader.fy:173
  Fancy::CodeLoader.load_compiled_file (load_compiled_file:) at lib/rbx/code_loader.fy:134
                       main.__script__ at bin/fancy:20
      Rubinius::CodeLoader#load_script at kernel/delta/codeloader.rb:67
      Rubinius::CodeLoader.load_script at kernel/delta/codeloader.rb:91
               Rubinius::Loader#script at kernel/loader.rb:494
                 Rubinius::Loader#main at kernel/loader.rb:591
                 Rubinius::Loader.main at kernel/loader.rb:630
                     Object#__script__ at kernel/loader.rb:641

gistfile2.txt