解决报错DEFAULT_INCOMPATIBLE_IMPROVEMENTS

freemarker整合springMVC报错如下：
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'freemarkerConfig' defined in class path resource [springmvc.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: DEFAULT_INCOMPATIBLE_IMPROVEMENTS

解决方式，把原有的freemarker版本换成最新版；
参考地址地址：http://stackoverflow.com/questions/40650970/java-lang-nosuchfielderror-default-incompatible-improvements；
freemarker下载地址：http://freemarker.org/freemarkerdownload.html
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原文地址：https://www.cnblogs.com/lixiuming521125/p/6472691.html