Error about "Chromium revision is not downloaded. Run BrowserFetcher.DownloadAsync or download Chromium manually"

Description

There is a method ,named OpenChromiumPage(), which open Chromium page as headless=true. While opening chromium, download zip file with revision number but its size 0KB.

After that, the method threw an exception with message says that “Chromium revision is not downloaded. Run BrowserFetcher.DownloadAsync or download Chromium manually”

Sometimes zip file extracted but when try to download chromium, giving the same error.

Should I update or add any code to below method?

My code located below.

         public static async Task<Page> OpenChromiumPage()
        {
            var browserFetcher = new BrowserFetcher(new BrowserFetcherOptions
            {
                Path = "C:\\Chromium"
            });
            await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);
            var browser = await Puppeteer.LaunchAsync(new LaunchOptions
            {
                Headless = true,
                Timeout = 0
            });
            return await browser.NewPageAsync();
        }

Expected behavior:

Zip file extracted and Chromium works

Actual behavior:

“Chromium revision is not downloaded. Run BrowserFetcher.DownloadAsync or download Chromium manually”

Versions

Version of PuppeteerSharp : v1.19.0 but latest versions give same result. .NET runtime and version: .NET framework 4.6.2

Additional Information

I tried to set a value for ExecutablePath property which is chromium.exe file path. Then download and works.

Is there any other solution or What should I update my code?

[imlokesh]

You have to pass ExecutablePath to Puppeteer.LaunchAsync. It will look like this:

     public static async Task<Page> OpenChromiumPage()
    {
        var browserFetcher = new BrowserFetcher(new BrowserFetcherOptions
        {
            Path = "C:\\Chromium"
        });
        await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);
        var browser = await Puppeteer.LaunchAsync(new LaunchOptions
        {
            Headless = true,
            Timeout = 0,
            ExecutablePath = "c:\\....\\chrome.exe"
        });
        return await browser.NewPageAsync();
    }

If you do not pass Path in BrowserFetcher, the you do not need to add ExecutablePath because it will automatically look into default download location.

[kblok]

BrowserFetch will always create its own folder. You can get that folder if you call GetRevisionInfo and get the ExecutablePath property from there.