Error: You attempted to overwrite the built-in helper "array". Where is this coming from?

Question

How do I track down where this error is coming from? I searched my own codebase, and could not find anywhere that I was using the {{array}} helper. It happens during an acceptance test.

You attempted to overwrite the built-in helper "array" which is not allowed. Please rename the helper.

I am attempting to update some of my Ember dependencies, which surfaced this problem.

handlebears · Accepted Answer · 2020-03-18 20:05:41Z

10

In the end, I did ember build and searched the contents of dist for helpers/array. This revealed an import from ember-composable-helpers:

;define("dummy/helpers/array", ["exports", "ember-composable-helpers/helpers/array"], function (_exports, _array) {

I was using a 2.x version of ember-composable-helpers. In version 3.0, the array helper was removed from the addon, since it became a standard helper provided by Ember itself.

Updating my ember-composable-helpers version to 3.x solved the problem.

answered Mar 18, 2020 at 20:05

handlebears

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1 Comment

Rami Alloush Over a year ago

Thank you for explaining the procedure! following it allowed me to know the error (though the overwrite was from my own code :D)

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