321 名前：ject (ArgumentError) from /home/student/s1100089/bin/goRua.rb:1313:in `make_view' from /home/student/s1100089/bin/goRua.rb:1364:in `remake_view' from /home/student/s1100089/bin/goRua.rb:1335:in `activate_prev_item' from /home/student/s1100089/bin/goRua.rb:1695:in `activate_prev_item' from /home/student/s1100089/bin/goRua.rb:1587:in `initialize' from /home/student/s1100089/bin/goRua.rb:1586:in `call' from /home/student/s1100089/bin/goRua.rb:3147:in `main' from /home/student/s1100089/bin/goRua.rb:3147
