Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

_subplots' or _redrawFromAutoMarginCount undefined using dcc.Loading and dcc.graph

See original GitHub issue

Hi All,

I have console error message when the graph loads. With a simple scenario as code shows below, I get this error:

plotly-1.49.4.min.js:7 Uncaught (in promise) TypeError: Cannot read property ‘_subplots’ of undefined at plotly-1.49.4.min.js:7 at Object.r.drawFramework (plotly-1.49.4.min.js:7) at e (plotly-1.49.4.min.js:7) at Object.l.syncOrAsync (plotly-1.49.4.min.js:7) at i (plotly-1.49.4.min.js:7)

if I set the figure to {} or to {layout:{}} then I get a warning (which is good) and the following error: plotly-1.49.4.min.js:7 Uncaught (in promise) TypeError: Cannot read property ‘_redrawFromAutoMarginCount’ of undefined at C (plotly-1.49.4.min.js:7) at plotly-1.49.4.min.js:7

Here sample code:

@app.callback(Output('my-graph-2', 'figure'),
              [Input('my-dropdown', 'value')])
def update_graph(value):

    values = [1,2,3]
    range = [1,2,3]

    return {
        'data': [{
            'x': range ,
            'y': values,
            'line': {
                'width': 1,
                'shape': 'spline'
            }
        }],
        'layout': {
            'margin': {
                'l': 30,
                'r': 20,
                'b': 30,
                't': 20
            }
        },

    }


def layout(unresolved_path=None, resolved_path=None):
    return html.Div([
            dcc.Dropdown(
                id='my-dropdown',
                options=[
                    {'label': 'option1', 'value': 'option1'},
                    {'label': 'option2', 'value': 'option2'},
                ],
                value= 'option1'
            ),
            dcc.Loading(id="loading-chart",
                        children=[dcc.Graph(id='my-graph-2')],
                        type="circle")

        ])