有时候虽然我们给项目配置的jdk版本、项目编译版本都一直,但是还是会报如下的错误:
Description Resource Path Location Type Java compiler level does not match the version of the installed Java project facet. daily Unknown Faceted Project Problem (Java Version Mismatch)
解决方案:右键->Properties->Project Facets->Java,修改其版本和配置的jdk版本一致即可。如图: