it working fine odoo15 but not in 16
 ##js##

odoo.define("web_widget_plotly_chart.widget_plotly", function (require) {
    "use strict";

    var fieldRegistry = require("web.field_registry");
    var AbstractField = require("web.AbstractField");

    var PlotlyChartWidget = AbstractField.extend({
        _renderReadonly: function () {
            var val = this.value;
            this.$el.html(val);
        },
        _renderEdit: function () {
            var val = this.value;
            this.$el.html(val);
        },
    });
    fieldRegistry.add("plotly_chart", PlotlyChartWidget);
    return {
        PlotlyChartWidget: PlotlyChartWidget,
    };
});

**view side **

name="plotly_chart" widget="plotly_chart" nolabel="1"/>

**python side **

plotly_chart = fields.Text(
    string='Plotly Chart',
compute='_compute_plotly_chart',
)
def _compute_plotly_chart(self):
    for rec in self:
        data = [{'x': [1, 2, 3], 'y': [2, 3, 4]}]
        rec.plotly_chart = plotly.offline.plot(data,
include_plotlyjs=False,
output_type='div')

##error##
Missing widget: plotly_chart for field of type text

kindly help me