３９１ですが、java.io.IOException: CreateProcess: dir error=2 at java.lang.Win32Process.create(Native Method) at java.lang.Win32Process.<init>(Win32Process.java:67) at java.lang.Runtime.execInternal(Native Method) at java.lang.Runtime.exec(Runtime.java:566) at java.lang.Runtime.exec(Runtime.java:428) at java.lang.Runtime.exec(Runtime.java:364) at java.lang.Runtime.exec(Runtime.java:326) at pack.pack2.hghghghg.main(hghghghg.java:22) Exception in thread "main" このエラーはどういった意味でしょうか。
