Hi,

I am parsing an xml file and putting the value in a Map. Now I would like to update an object with the values in the map But I am getting following error:

Initial term of field expression must be a concrete sobject: List <String>

My xml parser is below:

 private Map<String,list<string>> parsexml(DOM.XMLNode node){
        list<String> mslist = new list<string>();
        Map<String,list<string>> msmap = new Map<String,list<String>>{};
        //system.debug('Node:::'+node);
        String annualsave;
        String costsaving;
        String annualscore;
        String MSId;
        String result;
        
        for(Dom.XMLNode child : node.getChildElements()) {
            //system.debug('child:::'+child);
            for(DOM.XMLNode node1:child.getChildElements()){
                system.debug('child of child::'+node1);
                if(node1.getName()=='Id'){
                    	MSId = node1.getText().trim();
                        system.debug(MSId);
                    }
        		else if(node1.getName()=='Annual-Save'){
                    	annualcarbonsave = node1.getText().trim();
                    	result = annualsave;
                        system.debug(annualsave);
                    	mslist.add(annualsave);
                    }
                    else if(node1.getName()=='Cost-Save'){
                    	costsave = node1.getText().trim();
                        system.debug(costsave);
                        mslist.add(costsave);
                    }
                    else if(node1.getName()=='Annual-Score'){
                    	annualscore = node1.getText().trim();
                        system.debug(costscore);
                        mslist.add(annualscore);
                    }
                msmap.put(MSId,mslist);
            }
        }

        return msmap;
    }

 And Here I am relating this to the salesforce object:

Map<String,list<string>> msmap = new Map<String,list<String>>{};

msmap = parsexml(root);

List<Me__c> Ms = [select id, annual_save__c, cost_save__c from Me__c where id in: msmap.keySet()];
        for(Me__c m: Ms){
        	m.cost_save__c = msmap.get(m.id).costsave;
        }

Could you please guide me in right direction here.

Thanks,