Unknown widget: chart.Charts
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.
There are possibilities, e.g. if you load highcharts, bootstrap js by yourselves, this might cause 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.
- Check if chart.wpd is loaded successfully with developer tool > Network tab.