After installing the latest update to MS123 Performance Visualizers (v2018.10), the following error (text pasted below and image also attached) is encountered no matter which strategy is launched, or even when a "New Strategy from Code" is selected.

Notes:
a) The "Performance+" Visualizer has been pre-selected under Preferences.
b) The image attached shows the error when a "New Strategy from Code" was selected. But error is consistent across all strategies when opened. The Data range, Position size etc. can be seen in the image, but do not seem to have any bearing on the error, i.e. changing them does not make the error go away.
c) Data Provider is Fidelity.
d) This Visualizer has worked without errors for many months in the recent past.

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Error in Visualizer: TabPage: {Performance+}, removing.

One or more errors occurred.
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OK
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Same problem for me. For example, this happens every time with the Efficient Stock Rotation.

Usually this error is about 3 things: data, data and data. That's why I asked WLP123 about his data loading settings prior to creating this thread. However, it's different this time.

WLP123, your screenshot is helpful. It suggests that the visualizer crashes (and being removed by WLP) on no trades.

QUOTE:
d) This Visualizer has worked without errors for many months in the recent past.

You could have encountered this months ago but probably not because your system runs has had trades.

Anyway, hotfix v2018.10.1 is just out. WLP123 and Alexandre, please update the extension and restart WLP/D.

Now, it works for me. Thanks a lot Eugene.

Glad to have helped!

Works for me as well now. Thanks Eugene!

QUOTE:
You could have encountered this months ago but probably not because your system runs has had trades.

Just FYI, if it helps - I use this "New Strategy from Code" feature a lot and never had this error show up before. Also, have run my strategy in single symbol mode on symbols that had no trades, and no error. So the error might have been unrelated to no trades.

At your service!

Much appreciated, as always!

We just had a report in some other channel of a related error message yet not caused by a data issue:



Here a dependency (component file) of MS123 Visualizers is missing for some reason as suggested by the error message text in Italian (can't find file). In this case I recommend to reinstall the Extension from our gallery and restart WLP/D. That's all it takes.