Hopefully this helps others searching for this same fairly generic error.
Much like Zdravko, my cause came down to syntax.
On a site that worked until recently (April, 2016) I had a ComboChart with
this included in the options:
chartArea:{left:85,bottom:75,width:'77%',height:'78%'},
If I comment this out of the chart options, the chart renders, and if I
include it I get the error noted in the subject of this thread.
Upon changing to this, it works again:
chartArea:{left:'85px',bottom:'75px',width:'77%',height:'78%'},
This is the full chart definition, for context (with proper syntax in
place):
var chart_flows6 = new google.visualization.ChartWrapper({
containerId: 'chart_flows6',
chartType: 'ComboChart',
options: {title: 'ARKPUECO Stream Gage - Colors of Water',
seriesType:'area',
width:'100%',height:320,
chartArea:{left:'85px',bottom:'75px',width:'77%',height:'78%'},
isStacked:'true', lineWidth:0,
series: {0: {type:
'line',lineWidth:1,pointSize:9}}
}
});
I'm guessing I was using an old syntax that was finally deprecated as of
May 2016.
~Kelly
On Saturday, July 26, 2014 at 8:52:55 AM UTC-6, Zdravko Balorda wrote:
>
> I get this error on rendering a ComboChart in Chrome:
> Cannot read property 'length' of null
>
> The same page in FireFox works ok.
> Best regards, Zdravko
>
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