Programming should be careful not to have a processing instruction target that matches [xX][mM][lL].

First, when the problem maven package release project,
Error 2, error message

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Third, the solution is that the format of the XML configuration file is not standardized, you must put the following code in the first line of the XML file and can not be a space in front, note that it must be the first line You can also format the code by pressing Ctrl+Shift+F.

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