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React Widget example breaks the running panel #126

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jtpio opened this issue Sep 28, 2020 · 1 comment · Fixed by jupyterlab/jupyterlab#9092
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React Widget example breaks the running panel #126

jtpio opened this issue Sep 28, 2020 · 1 comment · Fixed by jupyterlab/jupyterlab#9092

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@jtpio
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jtpio commented Sep 28, 2020

From the 3.0 branch using JupyterLab 3.0.0rc1, opening the React Widget breaks the running panel:

react-running-panel

With the following error:

Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
@jtpio
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jtpio commented Sep 28, 2020

Found a similar behavior in another third-party extension using the ReactWidget from @jupyterlab/apputils when updating to lab 3.0.

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