CCS/IWR1642: what is the issue when i installing CCS7.3.0, and quit

!SESSION 2017-12-25 20:36:53.002 -----------------------------------------------
eclipse.buildId=4.6.0.I20160606-1100
java.version=1.8.0_112
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments:  -application com.ti.ccstudio.p2app -installiu com.ti.ccstudio.base.feature.group -repository file:/c:/ti/ccsv7/ccs_base/dsbuildrepo -destination c:/ti/ccsv7/eclipse
Command-line arguments:  -os win32 -ws win32 -arch x86 -application com.ti.ccstudio.p2app -installiu com.ti.ccstudio.base.feature.group -repository file:/c:/ti/ccsv7/ccs_base/dsbuildrepo -destination c:/ti/ccsv7/eclipse

!ENTRY org.eclipse.equinox.p2.operations 2 10005 2017-12-25 20:36:57.789
!MESSAGE "Code Composer Studio Base Components" will be ignored because it is already installed.