Why am I getting Unknown error in line 1 of pom.xml?

Question

Getting unknown error at Line 1 in pom.xml in Eclipse IDE. It was working fine till yesterday, but all of a sudden after updating my project from master and aft

Answer 1

same problem for me, original code from spring starter demo gives unknown error on line 1:

4.0.0

    org.springframework.boot
    spring-boot-starter-parent
    2.1.6.RELEASE
     

...

Changing just the version of 2.1.6.RELEASE to 2.1.4.RELEASE fixes the problem.