I'm facing an issue after doing customization to the web site like the picture below anyone got this problem before ?
its not from the code error i guess it is from the libraries right?

I'm facing an issue after doing customization to the web site like the picture below anyone got this problem before ?
its not from the code error i guess it is from the libraries right?

Best answer by abdallaahmed61
i solved the problem with doing the upgrade u mentioned and then took the dll files from the upgraded website into my library.
it seems like i was refrencing to another version of the DLLs thats why this error occured
thnx for your time
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