CODEWITHSUNDEEP
blazor-webassembly
Zeus82
Zeus82

Reputation: 6385

Blazor wasm failed to start platform. Reason: TypeError: NetworkError when attempting to fetch resource

I'm trying to publish my blazor wasm project. When I hit the url where it is hosted, the app never loads, and I see this error in the console:

Error: Failed to start platform. Reason: TypeError: NetworkError when attempting to fetch resource.
    g https://my-test-server.com/_framework/blazor.webassembly.js:1
    s https://my-test-server.com/_framework/blazor.webassembly.js:1
    s https://my-test-server.com/_framework/blazor.webassembly.js:1
    s https://my-test-server.com/_framework/blazor.webassembly.js:1
    promise callback*u https://my-test-server.com/_framework/blazor.webassembly.js:1
    a https://my-test-server.com/_framework/blazor.webassembly.js:1
    promise callback*u https://my-test-server.com/_framework/blazor.webassembly.js:1
    a https://my-test-server.com/_framework/blazor.webassembly.js:1
    promise callback*u https://my-test-server.com/_framework/blazor.webassembly.js:1
    r https://my-test-server.com/_framework/blazor.webassembly.js:1
    r https://my-test-server.com/_framework/blazor.webassembly.js:1
    g https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
    n https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
blazor.webassembly.js:1:14889
    printErr https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
    (Async: promise callback)
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
    n https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1
    <anonymous> https://my-test-server.com/_framework/blazor.webassembly.js:1

This error doesn't really give me much to go on... Anyone know where I can even start to look to try to figure out what's going on?

Upvotes: 2

Views: 1624

Answers (1)

Zeus82
Zeus82

Reputation: 6385

I figured it out - it turns out that when I installed .NET 6, publish started to trim assemblies (even though I was using VS2019 to publish). I had to disable it by adding this to my blazor csproj:

   <PropertyGroup>
      <PublishTrimmed>false</PublishTrimmed>
   </PropertyGroup>

Upvotes: 9

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