Problemas ao instalar o jQuery no Eclipse

Question

Eu baixei o Eclipse e estou tentando instalar o jQuery nele. Eu encontrei este no StackOverflow e segui a resposta do nielsvh . Eu era capaz de construir o projeto com o Maven, mas encontrei problemas para importá-lo para o Eclipse. Eu recebi esta mensagem de erro:

Cannot complete the install because one or more required items could not be found.
  Software being installed: JSDT jQuery Integration 1.7.0 (org.eclipselabs.jsdt.jquery_feature.feature.group 1.7.0)
  Missing requirement: JSDT jQuery API 1.7.0 (org.eclipselabs.jsdt.jquery.api 1.7.0) requires 'bundle org.eclipse.wst.jsdt.core [1.1.0,2.0.0)' but it could not be found
  Cannot satisfy dependency:
    From: JSDT jQuery Integration 1.7.0 (org.eclipselabs.jsdt.jquery_feature.feature.group 1.7.0)
    To: org.eclipselabs.jsdt.jquery.api [1.7.0]

Eu já instalei o Web Tools:

Por que estou recebendo este erro e como posso corrigi-lo?

EDITAR:

Com a ajuda do McDonald 's, consegui ir mais longe reinstalando o JSDT, mas agora tenho um erro diferente no qual ele deseja desinstalar o JSDT.

Cannot complete the install because of a conflicting dependency.
  Software being installed: JSDT jQuery Integration 1.7.0 (org.eclipselabs.jsdt.jquery_feature.feature.group 1.7.0)
  Software currently installed: Eclipse Web Developer Tools 3.9.0.v201706011953 (org.eclipse.wst.web_ui.feature.feature.group 3.9.0.v201706011953)
  Only one of the following can be installed at once: 
    JavaScript Development Tools Core 1.3.1.v201401291437 (org.eclipse.wst.jsdt.core 1.3.1.v201401291437)
    JavaScript Development Tools Core 2.0.300.v201703171536 (org.eclipse.wst.jsdt.core 2.0.300.v201703171536)
    JavaScript Development Tools Core 1.3.0.v201308282108 (org.eclipse.wst.jsdt.core 1.3.0.v201308282108)
    JavaScript Development Tools Core 1.1.202.v201208171701 (org.eclipse.wst.jsdt.core 1.1.202.v201208171701)
  Cannot satisfy dependency:
    From: JavaScript Development Tools 2.1.0.v201706011953 (org.eclipse.wst.jsdt.feature.feature.group 2.1.0.v201706011953)
    To: org.eclipse.wst.jsdt.core [2.0.300.v201703171536]
  Cannot satisfy dependency:
    From: Eclipse Web Developer Tools 3.9.0.v201706011953 (org.eclipse.wst.web_ui.feature.feature.group 3.9.0.v201706011953)
    To: org.eclipse.wst.jsdt.feature.feature.group [2.1.0.v201706011953]
  Cannot satisfy dependency:
    From: JSDT jQuery API 1.7.0 (org.eclipselabs.jsdt.jquery.api 1.7.0)
    To: bundle org.eclipse.wst.jsdt.core [1.1.0,2.0.0)
  Cannot satisfy dependency:
    From: JSDT jQuery Integration 1.7.0 (org.eclipselabs.jsdt.jquery_feature.feature.group 1.7.0)
    To: org.eclipselabs.jsdt.jquery.api [1.7.0]