ASP.net web site unable to reference dll RRS feed

  • Question

  • User-468333257 posted

    I could add reference to one of my custom made dlls in ConsoleApp, and Web application(Add reference)

    But when I added reference to WebSite, and tried to import namespace, it complains the following:

    The type of namespace xxxx could not be found. (are you missing a directive or assembly reference)?

    Wednesday, February 14, 2018 7:28 AM

All replies

  • User409696431 posted

    In a website, put the dll in the Bin folder.  Add a using statement in the code behind.

    Thursday, February 15, 2018 2:53 AM
  • User-468333257 posted
    It didnt work
    using xxx doesnt detect the namespace

    This only has problems in website

    Web application and console app are fine
    Thursday, February 15, 2018 4:18 AM
  • User409696431 posted

    Is the Bin folder right under the root of the site?   And I have no idea what "xxx" means.   I assure you that it works - I have several asp.net websites that are not applications.  You have not posted any code so there is not much more anyone can tell you.

    Thursday, February 15, 2018 4:42 AM
  • User-468333257 posted
    The dll is a custom dll i built from a console app built into class lib, not any kind of open source dll you get from downloading online.

    xxx is the namespace but somehow after i click project->add reference ->select these dll and add
    It still cant detect

    I didnt have this problems for web app and console app, only for web sites
    Thursday, February 15, 2018 3:59 PM
  • User409696431 posted

    You don't need to "add reference" for a website for code you are putting in the Bin yourself. Again, since I have no visibility to what you are doing, I can't tell what is wrong.

    Thursday, February 15, 2018 7:13 PM
  • User-468333257 posted

    Yes, the dlls are already in the bin folder, yet still same issue<br>
    Is there some kind of vs logs in vs2015 that i can refer to , to see what is wrong with vs not detecting my dll?

    Whats the use of providing code when it cant detect my dll

    using namespace; already gives error
    Tuesday, February 20, 2018 9:07 AM
  • User1400794712 posted

    Hi z080236,

    How about installing it into the global assembly cache?

    (Note:Each computer where the common language runtime is installed has this machine-wide code cache. The global assembly cache stores assemblies specifically designated to be shared by several applications on the computer.)

    Add the file to GCA

    gacutil.exe /i MyFile.dll

    Then you can get the version and

    gacutil /l MyFile

    For more details, please refer to the following articles:



    Best Regards,


    Saturday, February 24, 2018 7:23 AM