Openlayers: layer.getLayerStatesArray is not a function, ol: 5.2

[Dovernh]

I'm trying to upgrade to the latest ol: 5.2. I'm getting an error in Group.js saying layer.getLayerStatesArray is not a function. I put some breakpoints and determined that the layer it's complaining about is an Image layer. I checked the uuid's of the layers to determine this. The line giving me the error is: layer.getLayerStatesArray(states); The app is an angular 5 app, which didn't give me issues in ol 4.6.5, so I'm hoping this is not the issue.

Group.js
LayerGroup.prototype.getLayerStatesArray = function getLayerStatesArray (opt_states) {
var states = opt_states !== undefined ? opt_states : [];

var pos = states.length;

this.getLayers().forEach(function(layer) {

==> layer.getLayerStatesArray(states);
});

This is how I'm constructing the image layer

            this.blockLayer = new Image({
                name: 'blockLayer',
                source: new ImageWMS({
                    url: this.base,
                    params: '',
                    serverType: 'geoserver',
                    crossOrigin: null
                })
            });

[stale[bot]]

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[mettjus]

It's not working for me either on OL 5.3.3.

Below there's a codesandbox reproducing the issue, created by copying the basic example at https://openlayers.org/en/latest/doc/tutorials/concepts.html

https://codesandbox.io/s/openlayer-layergetlayerstatesarray-is-not-a-function-dvqej

[fredj]

@mettjus the import in the example is wrong, it must be:

import TileLayer from 'ol/layer/Tile';

instead of:

import TileLayer from 'ol/source/Tile';

[mettjus]

I was submitting the PR before finding out you had just made one and getting back here. Thanks! 👍