关于eclipse的问题，如何解决？

Exception in thread "main" java.lang.Error: Unresolved compilation problems:

HashedMap cannot be resolved to a type
HashedMap cannot be resolved to a type

at Duplicate.LabClosestMatches.closestCodes(LabClosestMatches.java:17)
at Duplicate.LabClosestMatches.main(LabClosestMatches.java:150)

怎么解决

应该是HashMap吧，你单词是不是写错了