Error in the 'eval' function?

[mmendes (Mike M)]

Hello,

I am getting a new error on my public form, and it appears to be in a function I myself did not include in the JS code for the form. The error text is as follows:

app.js:39 TypeError: Cannot read property '$on' of undefined
at eval (eval at e._executeCustomJavaScript (app.js:39), :320:25)
at app.js:39
at Array.map ()
at Function.e.safeRun (app.js:39)
at e. (app.js:39)
at app.js:39
at Object.next (app.js:39)
at i (app.js:39)
(anonymous) @ app.js:39

Any idea how I can clear this error? It is not a function that I wrote.

Thanks for the help,
Mike M.

[Margo]

Hello @mmendes,

This error points that the field internal name in the code is invalid.

You can debug your code following the instructions from this post:

Debug Forms Designer JS Code

Dear @himansh, The easiest option to debug code is to run it directly from browser's console. First, you need to add variables that you want to work with to the global window, with the following lines in JS editor: window.fd = fd; window.$ = $; window.pnp = pnp; Then, run any code pieces in browser's console without any problems. The only issue is that you won't be able to run them inside the events, the form will already be loaded. Most of the time, you can just wrap the code after testing …

[mmendes (Mike M)]

Thanks @mnikita, I found the issue with this debugging procedure