The log pane shows the following:
SEVERE 603 34748 org.utplsql.sqldev.CodeCoverageReporter Error when running code coverage: Failed to open file:/C:/Users/phs/AppData/Local/Temp/utplsql_476670770145486823html. Error message: No application is associated with the specified file for this operation.
There is a dot . missing before html. Hence no extension and no browser is opened.
The log pane shows the following:
There is a dot
.missing beforehtml. Hence no extension and no browser is opened.