Unknown widget: chart.Charts"
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Latest revision as of 04:31, 8 November 2022
Problem Decription
You see the error below in a browser developer tool > Console tab:
Uncaught Unknown widget: chart.Charts
Why It Happens
ZK fails to instantiate a chart widget because the chart js isn't loaded. (the widget class chart.Charts isn't registered successfully).
Possible Causes and Solutions
There must be something at the client-side affecting the widget registration.
Load a JavaScript that interferes with widget loading
There are possibilities, e.g. if you load highcharts, bootstrap js by yourselves, this might cause an error in chart.wpd and fail the widget registration.
Remove the javascript or resolve the code that interferes zk widget loading can solve this error.
Mixing 2 different versions of ZK jar
Please check your jar and just make sure you include one version of ZK jar in one application.
Debugging Steps
- Check if chart.wpd is loaded successfully with developer tool > Network tab.
- Check if you include any non-ZK javascript, remove them one by one to find the one that interferes ZK.
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