Internal error message when logging in

I get this error… and can’t seem to figure it out

image

Here is the Stack Trace:

stacktrace.txt (5.4 KB)

I noticed it happens when I try:

jsComponent.addFunction(“valueChanged”, callbackEvent -> {
JsonArray arguments = callbackEvent.getArguments().getString(0);
String text = arguments.getString(0);

and I have to import:

import elemental.json.JsonArray;

the whole application breaks down

Hi,

From your code, I can see that you get a string from an array and assign it to an array.

JsonArray arguments = callbackEvent.getArguments().getString(0);

It seems that the correct code is:

JsonArray arguments = callbackEvent.getArguments();
String text = arguments.getString(0);

Regards,
Gleb