Charts: crash Fatal error: Can't form Range with upperBound < lowerBound

[tangaowen]

I write a demo with LineChartView just as your demo code.
if I set the data with follow with crash :

    chartsDataArray.append(ChartDataEntry(x: 10, y: 20))
    chartsDataArray.append(ChartDataEntry(x: 30, y: 12))
    chartsDataArray.append(ChartDataEntry(x: 8, y: 24))
    chartsDataArray.append(ChartDataEntry(x: 5, y: 14))
    chartsDataArray.append(ChartDataEntry(x: 4, y: 4))

I just simple want draw a line with data above, it crashed with crash Fatal error: Can't form Range with upperBound < lowerBound.

But if I adjust the order of the data list , it won't crash.

I use XCode11 and Swift5.0 .

Thank Your !

[tangaowen]

   lineView?.xAxis.labelTextColor = .orange
    lineView?.xAxis.axisMinimum = 0.0
    lineView?.xAxis.axisMaximum = 40.0


    lineView?.leftAxis.labelTextColor = .blue
    lineView?.leftAxis.axisMinimum = 0.0
    lineView?.leftAxis.axisMaximum = 25.0

[harshitdiyoradd]

is it resolved?

[liuxuan30]

use ChartsDemo to reproduce please, and send us the code snippet.

[harshitdiyoradd]

Thanks for replying but now it’s working fine for me

On Tue, 29 Oct 2019 at 7:39 AM, Xuan [e-mail] wrote:

use ChartsDemo to reproduce please, and send us the code snippet.

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[harshitdiyoradd]

again getting same error i have used charts in one of my ios app.
here is the error i'm getting

"Fatal error: Can't form Range with upperBound < lowerBound"

[liuxuan30]

please debug a little with your crash, it's easier on your side to tell us what's the problem. it seems your min and max are flipped, however I need to know why

[harshitdiyoradd]

okay

but i didn't change anything in code.it's working perfectly sometime and
suddenly getting this error

On Wed, Nov 13, 2019 at 6:09 AM Xuan [e-mail] wrote:

please debug a little with your crash, it's easier on your side to tell us
what's the problem. it seems your min and max are flipped, however I need
to know why

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[Draffy2314]

I recently updated my iOS and after that my graph stoped working with the same error as above

[liuxuan30]

anyone who met this exact crash could easily go back and check the stack frames and tell us why the min/max are flipped, could you help to check?

[gerchicov-bp]

I have the same issue

[Timir11]

i'm facing same issue.can you please fix it ASAP as i have live app crashing.
Screen Recording 2019-12-12 at 4.00.09 PM.mov.zip

[pandapancake]

Had same issue before and saw another post with temporary fix code chartDataEntries.sort(by: { $0.x < $1.x }). Put it after you finish appending chartDataEntries. It's working for me so far but if you want to do something more than just showing the Chart it may not work.

[mohitpasiapac]

Hi, I'm using the react-native-charts-wrapper library as a wrapper to this for working with react-native (Url: https://github.com/wuxudong/react-native-charts-wrapper )and I'm encountering this issue on a particular chart in the xaxis which induces a crash on the application. Hence, if there's a fork available or please provide a fix in the next version. Please do the needy, tell me what to do. Thanks in advance.

Also @pandapancake can you please specify exactly where to do the changes mentioned by. It'd be a great help. Thanks.