编译有个错误Syntax error in template "Parser.jj" i

[xpw]

Syntax error in template "Parser.jj" in line 3645, column 10:
Unknown directive: #sep. Help (latest version): http://freemarker.org/docs/ref_directive_alphaidx.html; you're using FreeMarker 2.3.21

[yuqi1129]

Please provide your local environment, It's Okay in my desktop and my local environment are as follows
JDK: 1.8.0_151
Maven: 3.6.0
OS： MacOS Big Sur

[LuciferABC]

The problem is due to not specifying drill-fmpp-maven-plugin version， add 1.19.0