Error when using compat package

vNext
1

When I try to register the @aurelia/compat-v1 package, I get the following error:

Uncaught TypeError: Invalid property descriptor. Cannot both specify accessors and a value or writable attribute, #<Object>
    at Function.defineProperty (<anonymous>)
    at entry.bundle.js:4466:16
    at Array.forEach (<anonymous>)
    at defineBindingMethods (entry.bundle.js:4465:7)
    at Object.register (entry.bundle.js:4610:9)
    at Container.register (entry.bundle.js:5510:25)
    at Aurelia.register (entry.bundle.js:23360:24)
    at Aurelia.register (entry.bundle.js:28617:30)
    at ./src/main.ts (entry.bundle.js:1013:49)
    at __webpack_require__ (entry.bundle.js:28666:33)

Repro: compat package - StackBlitz

Am I doing something wrong? Many thanks in advance for any help!

1 Like
2

It’s a bug in the compat package, somehow was not detected. The issue boils down to this

Object.defineProperty(obj, key, {
  writable: true,
  get() { }
})

If there’ both writable and get on the property descriptor (3rd param), then it💥

3

A new dev version with the fix for this issue is out, maybe you can try that and see if it fixes your issue?

4

It is working now, thank you very much!

1 Like