当我将May Mac上安装的Eclipse从4.8更新到4.9时，我得到了
Cannot complete the install because of a conflicting dependency.
Software being installed: Eclipse Platform 4.9.0.v20180906-1121 (org.eclipse.platform.feature.group 4.9.0.v20180906-1121)
Software currently installed: Eclipse IDE for Java EE Developers 4.8.0.20180619-1200 (epp.package.jee 4.8.0.20180619-1200)
Only one of the following can be installed at once:
Ant Build Tool Core 3.5.200.v20180822-0553 (org.eclipse.ant.core 3.5.200.v20180822-0553)
Ant Build Tool Core 3.5.100.v20180512-1141 (org.eclipse.ant.core 3.5.100.v20180512-1141)
Cannot satisfy dependency:
From: Eclipse IDE for Java EE Developers 4.8.0.20180619-1200 (epp.package.jee 4.8.0.20180619-1200)
To: org.eclipse.equinox.p2.iu; org.eclipse.platform.feature.group [4.8.0.v20180611-0656,4.8.0.v20180611-0656]
Cannot satisfy dependency:
From: Eclipse Platform 4.8.0.v20180611-0656 (org.eclipse.platform.feature.group 4.8.0.v20180611-0656)
To: org.eclipse.equinox.p2.iu; org.eclipse.ant.core [3.5.100.v20180512-1141,3.5.100.v20180512-1141]
Cannot satisfy dependency:
From: Eclipse Platform 4.9.0.v20180906-1121 (org.eclipse.platform.feature.group 4.9.0.v20180906-1121)
To: org.eclipse.equinox.p2.iu; org.eclipse.ant.core [3.5.200.v20180822-0553,3.5.200.v20180822-0553]
有人可以帮我吗？比你！