Consistently reproducible C++ Runtime error on reloading Electron window: g_coreclr == nullptr

[tjcouch-sil]

Hello!

It seems I am having a consistent assertion failure on reloading the electron app with this quick start repo.

Steps to reproduce:

1. Clone the repo git clone https://github.com/agracio/electron-edge-js-quick-start.git
2. Install NPM dependencies npm install
3. Build .NET project dotnet build src/QuickStart.sln
4. Run the electron app npm start
5. Notice that the calls to C# function perfectly!
6. Reload with Ctrl+R or View->Reload
7. Microsoft Visual C++ Runtime Library window pops up with "Assertion failed! coreclr.cpp Line 49 Expression: g_coreclr == nullptr" as pictured:
   
8. To see what happens, click Ignore
9. Notice that there are no results in the window anymore as pictured:
   

I am running in Windows. I have VS2022 installed. I wonder if this affects anything. I also experience this issue after upgrading to .NET 6 and 7 in ExternalLibrary and QuickStart.Core.

Do you have any ideas or suggestions for me to try? Or if I should move this to the edge-js repo or the electron-edge-js repo, let me know. Thank you very much for your time!

Thank you also for your hard work on electron-edge-js. It is quite a unique and powerful solution to bridging Node and .NET.

Update: I installed VS2017 and tried again. When building, I receive an error that says, "The current .NET SDK does not support targeting .NET Core 3.1. Either target .NET Core 1.1 or lower, or use a version of the .NET SDK that supports .NET Core 3.1." I tried enabling previews of the .NET Core SDK, but that did not remove the error. It seems it may be a limitation of VS2017 because it does not use MSBuild 16. I also tried changing the .NET Core version to 1.1, fixing the AppDomain error, building (successfully!), and running the electron app. I got the same blank tables as in my second screenshot above. Reloading the page yielded the same runtime error as discussed above. I imagine this error is not related to the VS version or the .NET version but to edge-js or some aspect of this quick-start project. Let me know what you think. Thank you!

[agracio]

Duplicate of agracio/electron-edge-js#89, currently there is no solution for this problem when electron-edge-js is used on main Electron thread. The only way to mitigate it is to create Electron app using Electron IPC.
'quick-start' is already updated and no longer has that issue.

[hellozyemlya]

@agracio "main thread" is a thread where browser javascript executed, e.g. render process?

[agracio]

Yes, updated quick-start uses Electron IPC model to mitigate the problem.