Error Report

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Error Code: 
4
Error Message: 
Operation details
Installable Units Reported: 
com.jboss.devstudio.core.feature.feature.group,12.9.0.v20180928-1629
Detailed Message: 
Cannot complete the install because of a conflicting dependency. Software being installed: Red Hat Developer Studio (Core Features) 12.9.0.v20180928-1629 (com.jboss.devstudio.core.feature.feature.group 12.9.0.v20180928-1629) Software currently installed: Eclipse IDE for Java EE Developers 4.4.2.20150219-0708 (epp.package.jee 4.4.2.20150219-0708) Only one of the following can be installed at once: Eclipse UI 3.110.0.v20180828-1350 (org.eclipse.ui 3.110.0.v20180828-1350) Eclipse UI 3.106.0.v20140812-1751 (org.eclipse.ui 3.106.0.v20140812-1751) Eclipse UI 3.106.1.v20141002-1150 (org.eclipse.ui 3.106.1.v20141002-1150) Eclipse UI 3.106.0.v20140519-0906 (org.eclipse.ui 3.106.0.v20140519-0906) Cannot satisfy dependency: From: Developer Studio Cheatsheet starter 12.9.1.v20180807-2259 (com.jboss.devstudio.core.cheatsheets 12.9.1.v20180807-2259) To: bundle org.eclipse.ui 3.109.0 Cannot satisfy dependency: From: Red Hat Developer Studio (Core Features) 12.9.0.v20180928-1629 (com.jboss.devstudio.core.feature.feature.group 12.9.0.v20180928-1629) To: com.jboss.devstudio.core.cheatsheets [12.9.1.v20180807-2259] Cannot satisfy dependency: From: Eclipse IDE for Java EE Developers 4.4.2.20150219-0708 (epp.package.jee 4.4.2.20150219-0708) To: org.eclipse.epp.package.jee.feature.feature.group [4.4.2.20150219-0708] Cannot satisfy dependency: From: EPP Java EE IDE Feature 4.4.2.20150219-0708 (org.eclipse.epp.package.jee.feature.feature.group 4.4.2.20150219-0708) To: org.eclipse.platform.feature.group [4.4.2.v20150204-1700] Cannot satisfy dependency: From: Eclipse Platform 4.4.2.v20150204-1700 (org.eclipse.platform.feature.group 4.4.2.v20150204-1700) To: org.eclipse.rcp.feature.group [4.4.2.v20150204-1700] Cannot satisfy dependency: From: Eclipse RCP 4.4.2.v20150204-1700 (org.eclipse.rcp.feature.group 4.4.2.v20150204-1700) To: org.eclipse.ui [3.106.1.v20141002-1150]