"[xX][mM][lL]" is not allowed.

1、Caused by: org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.

出现这种错误一般都是XML的格式有问题，如文件头有空行、有注释等

2、去掉空行或注释就可以正常启动