[Bug]: Setup will not work with .NET 4.8

Playwright version

1.14

Operating system

Windows

What browsers are you seeing the problem on?

Chromium

Other information

No response

What happened? / Describe the bug

Running the program gave this error

Driver not found: C:\Users\user\Source\Repos\PlaywriteTest.playwright\node\win32_x64\playwright.cmd’

Code snippet to reproduce your bug

1. dotnet tool install --global Microsoft.Playwright.CLI
2. Create .NET 4.8 console app with the following code

using Microsoft.Playwright;
using System.Threading.Tasks;

namespace PlaywriteTest
{
    class Program
    {
        static async Task Main(string[] args)
        {
            await Go().ConfigureAwait(false);
        }

        public static async Task Go()
        {
            using (var playwright = await Playwright.CreateAsync())
            {
                var browser = await playwright.Chromium.LaunchAsync();
                var page = await browser.NewPageAsync();
                await page.GotoAsync("https://playwright.dev/dotnet");
                await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });
                await browser.DisposeAsync();
            }
        }
    }
}

When I tried the same steps except using .NET Core 3.1 everything worked fine.

Relevant log output

If I try to run playwright install (for the 4.8 project) in the Package Manager Console, I get...

PM> playwright install
playwright : Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, 
Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
At line:1 char:1
+ playwright install
+ ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (Unhandled excep...file specified.:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
 
File name: 'Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
   at System.Reflection.RuntimeAssembly.GetExportedTypes()
   at Microsoft.Playwright.CLI.Program.Main(String[] args) in /_/src/Playwright.CLI/Program.cs:line 75

[pavelfeldman]

Things should work on latest Playwright.

[avodovnik]

Thanks for the tip @atiris . I tried this and got a different result running the program, Playwright threw Microsoft.Playwright.PlaywrightException: ‘Process exited’ as soon as it hit using (var playwright = await Playwright.CreateAsync()) .

That would usually imply a missing installation… did you run playwright install?

The 4.8 issue where .playwright isn’t copied correctly is definitely a bug. Working to fix it.