An error occurred while rendering. Rendering has stopped

Hello everyone, I’m new here, I hope I’m writing in the right place.
well, I have a Cesium map in the project, this one has an address finder.

this rendering error comes out when i press certain keys like “a” or “s” it’s very strange. I hope someone can help me:

An error occurred while rendering. Rendering has stopped.

ReferenceError: util is not defined
executeAction@http://localhost:4200/vendor.js:17821:13
handleTick/<@http://localhost:4200/vendor.js:17792:22
handleTick@http://localhost:4200/vendor.js:17789:20
Event.prototype.raiseEvent@http://localhost:4200/scripts.js:1:89465
Clock.prototype.tick@http://localhost:4200/scripts.js:1:415498
CesiumWidget.prototype.render@http://localhost:4200/scripts.js:1:3325029
e@http://localhost:4200/scripts.js:1:3310922
timer@http://localhost:4200/polyfills.js:7873:41
invokeTask@http://localhost:4200/polyfills.js:5901:31
runTask@http://localhost:4200/polyfills.js:5673:47
invokeTask@http://localhost:4200/polyfills.js:5982:34
ZoneTask/this.invoke@http://localhost:4200/polyfills.js:5971:48
scheduleTask/data.args[0]@http://localhost:4200/polyfills.js:7853:32

Thank you.

Hi Jessica,

Can you provide a code example from your project to help track down the issue? Sandcastle is a useful tool for this.

Thanks,
Gabby