fastddsgen -language java -d ……

[739019118]

ERROR: Cannot generate the files
Group file names must end in .stg: JavaType
java.lang.IllegalArgumentException: Group file names must end in .stg: JavaType
at org.stringtemplate.v4.STGroupFile.(STGroupFile.java:63)
at com.eprosima.idl.generator.manager.TemplateManager.createStringTemplateGroup(TemplateManager.java:71)
at com.eprosima.fastcdr.idl.generator.TypesGenerator.(TypesGenerator.java:41)
at com.eprosima.fastdds.fastddsgen.parseIDL(fastddsgen.java:1134)
at com.eprosima.fastdds.fastddsgen.process(fastddsgen.java:726)
at com.eprosima.fastdds.fastddsgen.execute(fastddsgen.java:472)
at com.eprosima.fastdds.fastddsgen.main(fastddsgen.java:1715)