Couldn't transform value in label

Setup, Configuration and Use Beginners
1 
sitemap home label="Hausautomation Max" {
Frame label="" {
                Text item=Date
                Text item=Time
} Frame label="Zimmer Max" {
        Switch item=bed icon="light"
        Text item=temperature1 label="Raumtemperatur [%.1f   C]" icon="temperature" {
                Text item=temperature1 label="Raumtemperatur [%.1f   C]" icon="temperature"
                Switch item=CHART_PERIOD label="Zeitspanne" mappings=[0="Stunde", 1="Tag", 2="Woche"]
                Chart item=temperature1 period=h refresh=300 visibility=[CHART_PERIOD==0, CHART_PERIOD=="Uninitialized"]
                Chart item=temperature1 period=D refresh=1800 visibility=[CHART_PERIOD==1]
                Chart item=temperature1 period=W refresh=3600 visibility=[CHART_PERIOD==2]
        }
 }

        Frame label="Treppenhaus" {
                Switch item=stairwell icon="light"

         }

        Frame label="Sonne und Mond" {
                Text item=Sunrise_Time
                Text item=Sunset_Time
                Text item=Moon_Phase
        }
}

Error in the Log:

2018-10-07 16:47:06.855 [WARN ] [ui.internal.items.ItemUIRegistryImpl] - couldn't transform value in label because transformationService of type 'MAP' is unavailable

2018-10-07 16:47:06.877 [WARN ] [ui.internal.items.ItemUIRegistryImpl] - couldn't transform value in label because transformationService of type 'MAP' is unavailable

What could that be?
Thanks!

2

One of your item has a map tranformation, maybe in you items file and the MAP Service is not installed

3

there is a mapping.
but how can i install the Map Service?

4

Just open the Paper UI, select Add On -> Transformations and then the MAP Transformation

To be correct: mappings ist not a map transformation. Look trough your itehm for something like [MAP(Somename.map):%s]. This is a map transformation