runtime: Hot reload - EnC: we do not support patching of existing PARAM table cols. token=0x08000d0e

Description

I have a large Blazor wasm hosted app and hot reload stopped working for some time ago.

Error: System.TypeLoadException: EnC: we do not support patching of existing PARAM table cols. token=0x08000d0e
   at System.Reflection.Metadata.MetadataUpdater.ApplyUpdate(:5001/Assembly assembly, ReadOnlySpan`1 metadataDelta, ReadOnlySpan`1 ilDelta, ReadOnlySpan`1 pdbDelta)
   at Microsoft.Extensions.HotReload.HotReloadAgent.ApplyDeltas(:5001/IReadOnlyList`1 deltas)
   at Microsoft.AspNetCore.Components.WebAssembly.HotReload.WebAssemblyHotReload.ApplyHotReloadDelta(:5001/String moduleIdString, Byte[] metadataDelta, Byte[] ilDelta, Byte[] pdbBytes)
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.InvokeSynchronously(:5001/JSRuntime jsRuntime, DotNetInvocationInfo& callInfo, IDotNetObjectReference objectReference, String argsJson)
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.Invoke(:5001/JSRuntime jsRuntime, DotNetInvocationInfo& invocationInfo, String argsJson)
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.InvokeDotNet(:5001/String assemblyName, String methodIdentifier, String dotNetObjectId, String argsJson)
    at qi (dotnet.7.0.11.sf8asx8yhf.js:5:80665)
    at Ji (dotnet.7.0.11.sf8asx8yhf.js:5:80549)
    at _Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_InvokeDotNet (_Microsoft_AspNetCore_Components_WebAssembly__Microsoft_AspNetCore_Components_WebAssembly_Services_DefaultWebAssemblyJSRuntime_InvokeDotNet:30:5)
    at Object.invokeDotNetFromJS (blazor.webassembly.js:1:45224)
    at g (blazor.webassembly.js:1:1621)
    at e.invokeMethod (blazor.webassembly.js:1:2670)
    at Vt.Ke._internal.applyHotReload (blazor.webassembly.js:1:58767)
    at aspnetcore-browser-refresh.js:140:35
    at Array.forEach (<anonymous>)
    at applyBlazorDeltas (aspnetcore-browser-refresh.js:138:14)

Reproduction Steps

Not possible, my app to large.

Expected behavior

Hot reload should complete and refresh the browser.

Actual behavior

Need to stop and start the project again.

Regression?

No response

Known Workarounds

No response

Configuration

Windows 11 Visual Studio v17.7.4 MS project assemblys v7.0.11 MudBlazor v6.11.0

Other information

Hot-reload is executed from Visual Studio and debug-mode No response

About this issue

Original URL
State: closed
Created 9 months ago
Comments: 20 (13 by maintainers)

Most upvoted comments

@solbster strange. I’m going to close the issue for now; please ping me or open a new issue if the problem shows up again. Thanks for helping me to investigate it!

lambdageek on Oct 18, 2023

@lambdageek, hot-reload has started working again. I don’t have an explanation for this, but the only thing I can think of is that new Windows updates were installed.

Solbstr on Oct 15, 2023

Thank you! I’ll take a look tomorrow

lambdageek on Oct 9, 2023

lambdageek

@lambdageek

I’ve uploaded some files for you to review on my private GitHub repository. You should now have access to the repository and the files I’ve added.

Solbstr on Oct 9, 2023

@lambdageek

I’m only modifying the HTML code using MudBlazor components. This can involve changing the text within a <MudText></MudText> component or adjusting the size of a <MudImage> component. I’m not making any changes within the @code block

Example

Solbstr on Oct 9, 2023