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Asked: 2026-06-13T15:41:02+00:00

I have an application (app1) which has shown strange behavior, described here . I

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I have an application (app1) which has shown strange behavior, described here. I have created another application (app2) in IIS which had the same path as app1. It “worked”, as it didn’t throw the infragistics error, however it was unable to load some resources due to “invalid parameter”, also, it was unable to load jQuery.

I’ve made a test because I was curious. I modified another existing application’s path (app3) to the path app1. It “worked” just like app2, with the problem of not recognizing resources and not recognizing jQuery.

What is the cause of this behavior and how could I fix my applications? Is there a solution for this problem, or should I just pull my hair out?

Thank you in advance for any help,

Best regards,

Lajos Árpád.

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1 Answer

  1. Editorial Team

    IIS with ASP.NET uses temporary folders to compile dlls for uncompiled code/aspx files/whatever. IIS, strictly speaking, wouldn’t be doing anything here; it’s (probably) a job for the asp.net worker process(es) to invoke all necessary compilers, etc, but don’t quote me on this.

    When you visit the new app, unless it is completely pre-compiled, a bunch of code might need to be compiled as needed. Very rarely, this process gets messed up.

    If your website uses NuGET to get updated dlls, as at least one or more open source CMSes do, I’ve found, that might have to be handled as well, although as far as I know, those just get downloaded to the application’s bin folder. Sometimes that process can get broken if you move files around, as well.

    So there’s all kinds of things that could go on that might break, and the exception you getting is one of the most generic exceptions possible. It’s not likely to be that helpful without the stack trace.

    Going by this question
    ( Could not load file or assembly App_Licenses ), the solution to both of your problems might just be to delete your temporary files, although the solution that’s voted up the most (as of 10/27/2012) is a bit extreme: you should only have to delete the temporary files for the application you are concerned with, not every temporary file for every application. Cleaning and rebuilding your application might also work, as well as just restarting the AppPool associated with the website.

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