org.osgi.framework.BundleException: Could not resolve module: org.springframework.tooling.boot.ls [1312]
  Bundle was not resolved because of a uses constraint violation.
  org.apache.felix.resolver.reason.ReasonException: Uses constraint violation. Unable to resolve resource org.springframework.tooling.boot.ls [osgi.identity; type="osgi.bundle"; version:Version="1.9.0.201907120625"; osgi.identity="org.springframework.tooling.boot.ls"; singleton:="carview.php?tsp=true"] because it is exposed to package 'com.google.common.base' from resources com.google.guava [osgi.identity; type="osgi.bundle"; version:Version="21.0.0.v20170206-1425"; osgi.identity="com.google.guava"] and com.google.guava [osgi.identity; type="osgi.bundle"; version:Version="27.1.0.v20190517-1946"; osgi.identity="com.google.guava"] via two dependency chains.
Chain 1:
  org.springframework.tooling.boot.ls [osgi.identity; type="osgi.bundle"; version:Version="1.9.0.201907120625"; osgi.identity="org.springframework.tooling.boot.ls"; singleton:="carview.php?tsp=true"]
    require: (osgi.wiring.bundle=org.eclipse.xtext.xbase.lib)
     |
    provide: osgi.wiring.bundle: org.eclipse.xtext.xbase.lib
  com.google.guava [osgi.identity; type="osgi.bundle"; version:Version="21.0.0.v20170206-1425"; osgi.identity="com.google.guava"]
Chain 2:
  org.springframework.tooling.boot.ls [osgi.identity; type="osgi.bundle"; version:Version="1.9.0.201907120625"; osgi.identity="org.springframework.tooling.boot.ls"; singleton:="carview.php?tsp=true"]
    require: (osgi.wiring.bundle=org.springsource.ide.eclipse.commons.livexp)
     |
    provide: osgi.wiring.bundle; bundle-version:Version="3.9.10.201906242213-CI-B472"; osgi.wiring.bundle="org.springsource.ide.eclipse.commons.livexp"
  org.springsource.ide.eclipse.commons.livexp [osgi.identity; type="osgi.bundle"; version:Version="3.9.10.201906242213-CI-B472"; osgi.identity="org.springsource.ide.eclipse.commons.livexp"]
    require: (osgi.wiring.bundle=com.google.guava)
     |
    provide: osgi.wiring.bundle: com.google.guava
  com.google.guava [osgi.identity; type="osgi.bundle"; version:Version="27.1.0.v20190517-1946"; osgi.identity="com.google.guava"]
	at org.eclipse.osgi.container.Module.start(Module.java:457)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$1.run(ModuleContainer.java:1820)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$2$1.execute(EquinoxContainerAdaptor.java:150)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1813)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1769)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1735)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1661)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345)