Please add useful information when a particles emitter has an invalid/null frame

[monteiz]

When creating an emitter with an invalid/null frame, the error returned is:

Uncaught TypeError: Cannot read properties of null (reading 'canvasData')
    at ParticleEmitterManager.ParticleManagerCanvasRenderer [as renderCanvas] (VM1184 phaser.js:172287)
    at CanvasRenderer.render (VM1184 phaser.js:80190)
    at CameraManager.render (VM1184 phaser.js:155785)
    at Systems.render (VM1184 phaser.js:49092)
    at SceneManager.render (VM1184 phaser.js:100311)
    at Game.step (VM1184 phaser.js:162821)
    at TimeStep.step (VM1184 phaser.js:89366)
    at step (VM1184 phaser.js:89613)

It seems impossible to understand where the error comes from.

[photonstorm]

Thank you for submitting this issue. We have fixed this and the fix has been pushed to the master branch. It will be part of the next release. If you get time to build and test it for yourself we would appreciate that.