SOLVED Obj.constructor is not a function

[lavolp3]

Hi all,

I have programmed a new module and get this error message in the browser:

class.js:79 Uncaught TypeError: obj.constructor is not a function
    at cloneObject (class.js:79)
    at cloneObject (class.js:81)
    at Function.Module.create (module.js:435)
    at afterLoad (loader.js:122)
    at loader.js:137
    at HTMLScriptElement.script.onload (loader.js:184)

This comes up directly after

Module registered: MMM-testmodule

The mirror then does not start.
When I disable the module in the config, the message vanishes and the mirror starts properly.

Never seen that before. Does anybody know where this comes from?

Config entry:

    {
        //disabled: true,
        module: "MMM-testmodule",
        position: 'top_left',
        config: {
	},
    },

[sdetweil]

@lavolp3 no… can u post your module on gh so I can download it?

I created a small sample, using same names… it loaded ok…

but the js file has no useful content…

[lavolp3]

@sdetweil I have found the problem.

I had implemented an emtpy Object in the main module:

Module.register("MMM-testmodule", {

  defaults: {
    ...    
  },

  loading: true,
  fetchedData: Object.create(null),

It didn’t like the Object for some reason.
But thanks Sam for offering help! You’re a real lighthouse around here!