com.windriver.tm.core
org.eclipse.core.runtime.OperationCanceledException: Error launching Wind River Registry on localhost 

Possible cause:
Timeout connecting to Wind River Registry after launching it. Please try "Refresh" on the Registry node later. 

Wind River Registry Log Output:
Starting Wind River registry ...
/opt/WindRiver/workbench-3.3/foundation/x86-linux2/bin/wtxregd.ex (wtxregd@postel): Fri Oct 12 19:42:22 2018
Wind River Registry for Workbench 3.3.6
Wind River Registry version: 4.2.0.113
WTX Library version: 4.2.0.113
Wind River Registry initializing ... succeeded.
Restoring from temporary database file /var/tmp/wtxregd.postel.temp
failed.
Wind River Registry exiting

/opt/WindRiver/workbench-3.3/foundation/x86-linux2/bin/wtxregd.ex (wtxregd@postel): Fri Oct 12 19:42:22 2018
Warning: Can not create file : /opt/WindRiver/.wind/dummyFile.test (Permission denied)
Warning: Can not use /opt/WindRiver/.wind directory, using /var/tmp instead
Error: Wind River Registry restoring data base from file ...     Error: Can not write to file : /var/tmp/wtxregd.postel.temp (Permission denied)