now i’m testing to fetch data list (third picture) from firebase database with blocks shown below.
the moment it load the screen, there will have runtime error (second picture).
i’m not sure where gone wrong 
please help 
Extensions in the app:
hi all,
managed to figured out the problem and now progressed until as below:
what ever name i change for the component ID also will come out this error, weird.
{
“name”: “ventelpanas”,
“metadata-version”: 1,
“author”: “Mike Chan”,
“platform”: [ “kodular” ],“keys”:
[
“text”,
“location”,
“category”,
“time”
],“components”: [
{
“id”:“spacing1_{ID}”,
“type”:“SpaceView”,
“properties”:
{
“HeightPercent”: 2
}}, { "id":"vertical001_{ID}", "type":"VerticalArrangement", "properties": { "WidthPercent": 95, "AlignVertical": 2, "AlignHorizontal": 3 }, "components": [ { "id":"rantText001_{ID}", "type":"Label", "properties": { "Text":"{text}", "FontSize": 17, "FontTypefaceImport": "Montserrat-Bold.otf" } }, { "id":"space002_{ID}", "type":"SpaceView", "properties": { "HeightPercent": 2 } }, { "id":"horizontal001_{ID}", "type":"HorizontalArrangement", "properties": { "WidthPercent": 95, "AlignVertical": 2 }, "components": [ { "id":"location001_{ID}", "type":"Label", "properties": { "Text":"{location}", "FontSize": 12, "FontTypefaceImport":"Montserrat-Regular.otf" } }, { "id":"space003_{ID}", "type":"SpaceView", "properties": { "WidthPercent": 2 } }, { "id":"timestamp001_{ID}", "type":"Label", "properties": { "Text":"{time}", "FontSize": 12, "FontTypefaceImport":"Montserrat-Regular.otf" } } ] } ] } ]}
managed to pull data from Firebase but only shows one row and i don’t know where the number “1” comes from.
the data in Firebase i modified into as below:
now i’m stuck here, don’t know how to move on 
Updates:
added “ID” into keys
now turn out error like below;
by the way, my own silly mistakes.
all resolved 
