Article - CS356827
Mashup keeps on loading when trying to edit in Design time in ThingWorx
Modified: 04-Sep-2025
Applies To
- ThingWorx Platform 9.4 to 10.0
Description
- Not able to Edit any mashup in Design mode
- Able to View Mashup successfully
- Redeploying Thingworx war file by clearing Thingworx folder from Tomcat/webapps directory did not fix the issue
- Errors in Developer's console logs :
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ERROR [event-aggregator] TypeError: Cannot read properties of undefined (reading 'resetMashup') uncaught reference error: codemirror is not defined, uncaught type error: this._updateArea is not a function
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- Application logs showing error as below related to a Custom Extension
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An error occurred while loading <custom extension>
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