Spring plugin in Eclipse cannot open pom.xml

Question

I've installed the most popular plugin in Eclipse (Spring Tools 4.14.1) and i tried to create a new project and open the pom.xml and then it shows error and comes like

Failed to create the part's controls

The error shows like this. Why does this happen? How to fix it?

java.lang.NoClassDefFoundError: org/eclipse/tm4e/ui/utils/ContentTypeHelper
    at org.eclipse.tm4e.languageconfiguration.LanguageConfigurationCharacterPairMatcher.findContentTypes(LanguageConfigurationCharacterPairMatcher.java:134)
    at org.eclipse.tm4e.languageconfiguration.LanguageConfigurationCharacterPairMatcher.getMatcher(LanguageConfigurationCharacterPairMatcher.java:113)
    at org.eclipse.tm4e.languageconfiguration.LanguageConfigurationCharacterPairMatcher.match(LanguageConfigurationCharacterPairMatcher.java:47)
    at org.eclipse.jface.text.source.MatchingCharacterPainter.paint(MatchingCharacterPainter.java:313)
    at org.eclipse.jface.text.PaintManager.addPainter(PaintManager.java:207)
    ...

Answer 1

Spring Tools 4.14.1 is missing tm4e.

To install it, go to "Help → Install new software → Add URL: https://download.eclipse.org/tm4e/snapshots/. Click finish. Restart Eclipse.

Thanks to howlger for ideas from the question comments.