Error loading dependencies (Only on Windows)

Dash Python
1

Hi,

Only on Windows this error occurs with @app.callback in the following code.
On Ubuntu this error does not occur.
How can I inspect the reason of this error?

Error loading dependencies

import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

app = dash.Dash(__name__, external_stylesheets=external_stylesheets)

app.layout = html.Div([
    dcc.Input(id='my-id', value='initial value', type='text'),
    html.Div(id='my-div')
])


@app.callback(
    Output(component_id='my-div', component_property='children'),
    [Input(component_id='my-id', component_property='value')]
)
def update_output_div(input_value):
    return 'You\'ve entered "{}"'.format(input_value)


if __name__ == '__main__':
    app.run_server(debug=True)

I pip installed the following versions to both OS.

pip install dash==0.36.0
pip install dash-html-components==0.13.5
pip install dash-core-components==0.43.0
pip install dash-table==3.1.11
pip install dash-daq==0.1.0
2

Is there any errors or other output in the terminal running the app?

Or errors being printed to the dev tools console? (F12 will open this up)

3

There is no error in the Windows terminal.

image
image.png1097×298 7.24 KB

4

I found this error in the Chrome devtools console.

image
image.png1108×705 46.4 KB

5

Could you pip install -U dash and try again?

6

Thank you. dash version 0.37.0 solved this problem.

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