Error Report

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Error Code: 
4
Error Message: 
Operation details
Installable Units Reported: 
org.testng.eclipse.maven.feature.feature.group,6.13.0.201712040650
Detailed Message: 
Your original request has been modified. TestNG will be ignored because it is already installed, and updates are not permitted. Cannot complete the install because of a conflicting dependency. Software being installed: TestNG M2E (Maven) Integration (Optional) 6.13.0.201712040650 (org.testng.eclipse.maven.feature.feature.group 6.13.0.201712040650) Software currently installed: TestNG 6.8.6.20141201_2240 (org.testng.eclipse.feature.group 6.8.6.20141201_2240) Only one of the following can be installed at once: TestNG Eclipse Support 6.11.0.201703011520 (org.testng.eclipse 6.11.0.201703011520) TestNG Eclipse Support 6.8.6.20141201_2240 (org.testng.eclipse 6.8.6.20141201_2240) TestNG Eclipse Support 6.9.13.201609291640 (org.testng.eclipse 6.9.13.201609291640) TestNG Eclipse Support 6.9.5.201505251947 (org.testng.eclipse 6.9.5.201505251947) TestNG Eclipse Support 6.9.10.201512240000 (org.testng.eclipse 6.9.10.201512240000) TestNG Eclipse Support 6.9.11.201604020423 (org.testng.eclipse 6.9.11.201604020423) TestNG Eclipse Support 6.9.12.201607091356 (org.testng.eclipse 6.9.12.201607091356) TestNG Eclipse Support 6.12.0.201709050550 (org.testng.eclipse 6.12.0.201709050550) TestNG Eclipse Support 6.13.0.201712040650 (org.testng.eclipse 6.13.0.201712040650) TestNG Eclipse Support 6.12.0.201709030110 (org.testng.eclipse 6.12.0.201709030110) TestNG Eclipse Support 6.10.0.201612030230 (org.testng.eclipse 6.10.0.201612030230) Cannot satisfy dependency: From: TestNG 6.8.6.20141201_2240 (org.testng.eclipse.feature.group 6.8.6.20141201_2240) To: org.testng.eclipse [6.8.6.20141201_2240] Cannot satisfy dependency: From: TestNG M2E (Maven) Integration 6.13.0.201712040650 (org.testng.eclipse.maven 6.13.0.201712040650) To: bundle org.testng.eclipse 6.9.10 Cannot satisfy dependency: From: TestNG M2E (Maven) Integration (Optional) 6.13.0.201712040650 (org.testng.eclipse.maven.feature.feature.group 6.13.0.201712040650) To: org.testng.eclipse.maven [6.13.0.201712040650]