Issue with report creation - Method and AML

Hello, We currently don't have self service reporting and I am trying to create a report but have ran into an issue. I have created one as a method (to be ran though the reports drop down) and one as AML but neither work. I can't work out how to get this to display in a tabulated format, get the error "Line number 40, Error Number: CS0029, Cannot implicitly convert type 'string' to 'Aras.IOM.Item'" on the "return html" line. The method searches through all ecr records and if they are within the last month and have a change type of defect it will display the records found. The method works if I say "return inn.newResult(result);, but cant convert into the   Innovator inn = this.getInnovator(); Item ecr = inn.newItem("ECR","get"); ecr.setAttribute("select", "item_number, source, trl_product_family, state, trl_change_type, created_on, trl_sup_total_cost_of_change"); ecr = ecr.apply(); string result = ""; // Specify Dates DateTime today = DateTime.Today; DateTime month = new DateTime(today.Year, today.Month, 1); DateTime first = month.AddMonths(-1); DateTime last = month.AddDays(-1); //return inn.newResult(Environment.NewLine + first + Environment.NewLine + last +Environment.NewLine); if (ecr.isError()){ return ecr; } int totalecrswithdefects = 0; for(int i=0; i<ecr.getItemCount(); i++) { Item curr_part = ecr.getItemByIndex(i); string e = curr_part.getProperty("item_number",""); string h = curr_part.getProperty("trl_change_type",""); DateTime d = DateTime.Parse(curr_part.getProperty("created_on","")); if (d.Date>first.Date && d.Date<last.Date && h == "Defect") { totalecrswithdefects++; result = result + Environment.NewLine + e + " " + h + " " + d; } else { continue; } } var report = inn.getItemByKeyedName("Report","newlostcost"); var style = report.getProperty("xsl_stylesheet"); var html = ecr.applyStylesheet(style,"text"); return html; OR: I also cant work out how to use the "less than" operator in the below for the section "and [ecr].created_on<" I get the error:- '<', hexadecimal value is an invalid attribute character. <AML> <Item type="ECR" action="get" where="[ecr].created_on>DATEADD(month, DATEDIFF(month, -1, getdate()) - 2, 0) and [ecr].created_on<DATEADD(ss, -1, DATEADD(month, DATEDIFF(month, 0, getdate()), 0))"</Item> </AML>   Any ideas?  
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