Fix error

src/Logic/FeatureSource/Sources/LastClickFeatureSource.ts

@@ -26,7 +26,12 @@ export class LastClickFeatureSource implements WritableFeatureSource {
             for (let i = 0; i < (layer.presets ?? []).length; i++) {
                 const preset = layer.presets[i]
                 const tags = new ImmutableStore(TagUtils.KVtoProperties(preset.tags))
-                const { html } = layer.mapRendering[0].RenderIcon(tags, {
+                const rendering = layer.mapRendering[0]
+                if (!rendering) {
+                    console.error("NO rendering for preset", layer.id)
+                    continue
+                }
+                const { html } = rendering.RenderIcon(tags, {
                     noSize: true,
                     includeBadges: false,
                 })

src/Models/ThemeConfig/Conversion/Validation.ts

@@ -1062,6 +1062,12 @@ export class PrevalidateLayer extends DesugaringStep<LayerConfigJson> {
                 )
         }
 
+        if (json.presets?.length > 0) {
+            if (!(json.pointRendering?.length > 0)) {
+                context.enter("presets").warn("A preset is defined, but there is no pointRendering")
+            }
+        }
+
         if (json.source === "special") {
             if (!Constants.priviliged_layers.find((x) => x == json.id)) {
                 context.err(
@@ -1377,6 +1383,7 @@ export class ValidateLayer extends Conversion<
             context.err("Could not parse layer due to:" + e)
             return undefined
         }
+
         for (let i = 0; i < (layerConfig.calculatedTags ?? []).length; i++) {
             const [_, code, __] = layerConfig.calculatedTags[i]
             try {