after installed ruby enterprise1.8.7, started rails app, I met next error when database migration.uninitialized constant ActiveSupport::Dependencies::Mutex

-> select "manual setting" -> search IP address for temporal using ping$ ping ***.***.***.*** if test is OK, put it for temporal IP address for new PC -> name server; ***.***.***.* name server must be set correct. Installing Ubuntu DeskTop…

Installing Ubuntu 12.04 server 64bitjust put in CD and start computer.

Backup you must backup next two items. Way of backup is follow to application. -> select "manual setting" -> search IP address for temporal using ping$ ping ***.***.***.*** if test is OK, put it for temporal IP address for new PC -> name s…

I tried to add "select all" button to check box.HTMLselect all'hoge();' -%>JavaScript for test. function hoge() { alert("ようこそ！"); } but window does not open when checked select all check box.error message;select_all is not a function.…