clarify 'no events' message

JoeGermuska · JoeGermuska · commit baac7b6e143d · 2025-03-25T08:30:11.000-05:00
diff --git a/src/js/core/TimelineConfig.js b/src/js/core/TimelineConfig.js
@@ -141,7 +141,7 @@ export class TimelineConfig {
      */
     validate() {
         if (typeof(this.events) == "undefined" || typeof(this.events.length) == "undefined" || this.events.length == 0) {
-            this.logError("Timeline configuration has no events.")
+            this.logError("Timeline configuration has no events. Common causes for this: changing/erasing 'Year' from the A1 cell, or having 'era' in all non-title 'type' cells.")
         }
 
         // make sure all eras have start and end dates
@@ -381,4 +381,4 @@ export class TimelineConfig {
         _process_fields(slide, stripMarkup, STRIP_MARKUP_FIELDS)
 
     }
-}
+}

Original file line number	Diff line number	Diff line change
`@@ -141,7 +141,7 @@ export class TimelineConfig {`
`141`	`141`	`*/`
`142`	`142`	`validate() {`
`143`	`143`	`if (typeof(this.events) == "undefined" \|\| typeof(this.events.length) == "undefined" \|\| this.events.length == 0) {`
`144`		`- this.logError("Timeline configuration has no events.")`
	`144`	`+ this.logError("Timeline configuration has no events. Common causes for this: changing/erasing 'Year' from the A1 cell, or having 'era' in all non-title 'type' cells.")`
`145`	`145`	`}`
`146`	`146`
`147`	`147`	`// make sure all eras have start and end dates`
`@@ -381,4 +381,4 @@ export class TimelineConfig {`
`381`	`381`	`_process_fields(slide, stripMarkup, STRIP_MARKUP_FIELDS)`
`382`	`382`
`383`	`383`	`}`
`384`		`-}`
	`384`	`+}`