為什麼我安裝JBuilderX的試用版會出現以下的錯誤訊息內容,然後就不能安裝了,請問有那一位高手能能訴我那裡沒有設定好。謝謝了

java.lang.StringIndexOutOfBoundsException: String index out of range: -48
at java.lang.String.substring(String.java:1444)
at java.lang.String.substring(String.java:1411)
at ZeroGlh.a(Unknown Source)
at com.zerog.ia.installer.util.magicfolders.JavaHomeMF.a(Unknown Source)
at com.zerog.ia.installer.util.magicfolders.JavaHomeMF.b(Unknown Source)
at com.zerog.ia.installer.util.magicfolders.MagicFolder.initializeAllMagicFolderPaths(Unknown Source)
at com.zerog.ia.installer.Main.d(Unknown Source)
at com.zerog.ia.installer.Main.c(Unknown Source)
at com.zerog.ia.installer.Main.main(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.zerog.lax.LAX.launch(Unknown Source)
at com.zerog.lax.LAX.main(Unknown Source)