Problem starting a migrated VB.NET application / wisej.wx HTTP status 404.0

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I have a VB.NET application, migrated to Wisej.NET following the guidelines; the application compiles, IIS Express is starting up, but it’s failing with a

“http://localhost:5000/wisej.wx with HTTP status 404.0”  error.

Full IIS Express log:

Successfully registered URL “http://localhost:5000/” for site “Development Web Site” application “/”
Registration completed
IIS Express is running.
Enter ‘Q’ to stop IIS Express
Anforderung gestartet: “GET” http://localhost:5000/wisej.wx
Response sent: http://localhost:5000/wisej.wx with HTTP status 404.0

With a new, built from scratch Wisej.NET application, it works like a charm, but the migrated app does not. I tried the migration process again with a super simple application; same error.

Any help is highly appreciated – thanks!

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Thanks for the hints!

I have checked / adapted everything I consider relevant from the working test app to my application:

  • Default.html and Default.json
  • launchSettings.json
  • All .vbproj settings (via the XML file)

all without success. Finlly, the reason for the error was simple: the web.config was missing! I copied it from the working app, now it starts!

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Hi Robert,

Can you check out your Properties/launchSettings.json file? Compare it with the same one in any of the other Wisej.NET Templates and see if there’s anything off.

Also, make sure that both the Default.html and Default.json files exist, and that the Default.json file is configured correctly.

Best,
Alaa

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