There are some errors "MONO_WASM: mono_wasm_load_runtime () failed" when go to the Counter page after publish the Blazor WebAssembly app

[jinzhao1127]

REGRESSION INFO: Works well on 10.0 RC 1 and Previous 10.0 RC 2 build

INSTALL STEPS:

1. Install Latest 10.0 RC 2 from Release Tracker
2. Apply Feed and do feed workaround

Platform

• Windows
• macOS
• Linux

Repro Steps

1. Open up a normal Command Prompt (Terminal)
2. Create a Blazor Web App for WebAssembly

   dotnet new blazor -int WebAssembly -o wasm
   cd wasm/wasm
   

3. Publish the project with dotnet publish
4. Go to the publish folder and run dotnet wasm.dll.
5. Open the browser and go to the http://localhost:5000/counter
6. Open the browser developer console window

Actual Result

There is no any response and the console window contains some error

Error Log

dotnet.runtime.fn94ls2wwa.js:3 
 [MONO] * Assertion at /__w/1/s/src/runtime/src/mono/mono/metadata/assembly.c:2718, condition `<disabled>' not met
Error
    at Mc (dotnet.runtime.fn94ls2wwa.js:3:172298)
    at dotnet.native.ggch313emy.wasm:0xac62
    at dotnet.native.ggch313emy.wasm:0x43c51
    at dotnet.native.ggch313emy.wasm:0x42301
    at dotnet.native.ggch313emy.wasm:0x42422
    at dotnet.native.ggch313emy.wasm:0x42465
    at dotnet.native.ggch313emy.wasm:0x42438
    at dotnet.native.ggch313emy.wasm:0x8cd9
    at Module._mono_wasm_load_runtime [as mono_wasm_load_runtime] (dotnet.native.98v1chuo8c.js:8:113231)
    at dotnet.runtime.fn94ls2wwa.js:3:188734
dotnet.runtime.fn94ls2wwa.js:3 
 MONO_WASM: mono_wasm_load_runtime () failed [object Object]
[NEW] Explain Console errors by using Copilot in Edge: click 
 to explain an error. Learn more
Don't show again
dotnet.runtime.fn94ls2wwa.js:3 
 Uncaught (in promise) 
ExitStatus {name: 'ExitStatus', message: 'Program terminated with exit(1)', status: 1, silent: true}
dotnet.runtime.fn94ls2wwa.js:3 
 Uncaught (in promise) 
ExitStatus {name: 'ExitStatus', message: 'Program terminated with exit(1)', status: 1, silent: true}
blazor.web.911ktl676v.js:1 
 Uncaught (in promise) Error: Failed to start platform. Reason: [object Object]
    at Vr (blazor.web.911ktl676v.js:1:176030)
blazor.web.911ktl676v.js:1 
 Uncaught (in promise) 
ExitStatus {name: 'ExitStatus', message: 'Program terminated with exit(1)', status: 1, silent: true}


Expected Result:
There is no any error when click counter button

Note:

1. This issue does not repro on Blazor Web Server app
2. This issue does not repro when dotnet run
3. This issue does not reproduce on the previous build
4. This issue also reproduces on 9.0 project after installing 10.0 RC 2

[v-reinawang]

This Issue also repro in the Blazor WebAssembly Standalone App project, and the page cannot be loaded.

[ilonatommy]

@jinzhao1127, I can reproduce the problem with rc2. It does not happen with 10.0.100-rtm.25479.115. Templates tested:

• Blazor Server with WebAssembly client
• standalone WebAssembly.

[javiercn]

@maraf is this something you are aware of?