try to get it compile

admin/form/part.xml

@@ -1,9 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <form>
+	<fieldset name="details" label="COM_JRON_STOCK_TAB_DETAILS">
 	<field
-		name="component_name" 
-		type="text" 
-		label="JFIELD_NAME_LABEL" 
+		name="titel"
+		type="text"
+		label="JFIELD_NAME_LABEL"
+		description="JFIELD_NAME_DESC"
+		size="40"
 		required="true"
 	/>
+	<field
+		name="id"
+		type="text"
+		label="JGLOBAL_FIELD_ID_LABEL"
+		class="readonly"
+		default="0"
+		readonly="true"
+	/>
 </form>