var recordId = cmp.get("v.recordId");
       var Fields = { ToAddress: {value: "to@to.com"}, 
                     ParentId	: {value: recordId}, 
                     HTMLBody: {value: "the text body", insertType: "cursor"} }
        var args = {actionName :"Case.Send_Email"};
        actionAPI.selectAction(args).then(function(result){
            console.log('Available Fields are ', JSON.stringify(result));
            //actionAPI.invokeAction(args);

        }).catch(function(e){
            if(e.errors){
                console.log('Action Field Log Errors are ',e.errors);
                console.error('Full error is ', JSON.stringify(e));
            }

try to using the "quickActionAPI" and gettting the 

below error "We can’t execute the API because the parent record isn’t selected."
Calling the Quickaction from lightning component and it's not working. please let me if i am doing anything wrong..

Thanks in advance.