ImageExport never stops

[vanaur]

Description

I want to use Plotly.NET.ImageExport to statically export a graph as an image. When I run the application, my program runs for a very long time without any results.

Repro steps

Create a new F# project in console mode and add the dependencies to Plotly.NET and Ploty.NET.ImgeExport:

$  dotnet new console -lang F#
$  dotnet add package Plotly.NET
$  dotnet add package Plotly.NET.ImageExport

Then write any code that exports an image:

open Plotly.NET.ImageExport
open Plotly.NET

let test path =
    let xs = [ 0.0 .. 9.0 ]
    let ys = Seq.map (fun x -> x ** 2.0) xs

    Chart.Scatter(xs, ys, StyleParam.Mode.Lines_Markers)
    |> Chart.saveJPG path

printfn "Exporting the graph..."
do test "test.jpg"
printfn "Done!"  // never appears

Expected behavior

I expect it to generate an image, and especially for my application to stop, it seems to loop.

Actual behavior

After 10 minutes of waiting, I stopped my program because nothing happens.

Known workarounds

I came across this issue. My application did indeed generate a local chromium, so I referred Plotly to it:

open Plotly.NET.ImageExport
open Plotly.NET

do
    PuppeteerSharpRendererOptions.localBrowserExecutablePath <-
        Some ".local-chromium/Linux-884014/chrome-linux/chrome"

let test path =
    let xs = [ 0.0 .. 9.0 ]
    let ys = Seq.map (fun x -> x ** 2.0) xs

    Chart.Scatter(xs, ys, StyleParam.Mode.Lines_Markers)
    |> Chart.saveJPG path

printfn "Exporting the graph..."
do test "test.jpg"
printfn "Done!"  // never appears

I have tried absolute and relative path, but the problem remains the same.

Related information

• Operating system: Linux, Pop!_OS
• .NET Runtime: version 6.0.301

[WhiteBlackGoose]

Hello. We fixed that bug very recently, actually. It didn't make it to the release yet, so get a prerelease version:

dotnet new nugetconfig
dotnet nuget add source https://www.myget.org/F/plotly-net-nightly/api/v3/index.json
dotnet add package Plotly.NET --prerelease

[vanaur]

Oh, I see, thanks for the information! And the pre-release is working well.

[WhiteBlackGoose]

@kMutagene I guess we can close it?