Visual studio project not opening RRS feed

  • Question

  • I have been working on a project for the last few months.Yesterday i was working with my project as well.There were no error until i installed GemBox.Spreedsheet.After installing gembox.speerdsheed,if u follow the usage procedure in the dev's website,u can see that using gembox spreadsheet requires you a license which you need to place in a new Public Sub.But just after i added the lines of code containing the license,i debugged my application and it gave me an error saying

    ** Could not load file or assembly 'Tabcontrolclass, Version=, Culture=neutral, PublicKeyToken=0a001c7cd8ca5785' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'Tabcontrolclass, Version=, Culture=neutral, PublicKeyToken=0a001c7cd8ca5785'**

    TabControlClass is my custom made tabcontrol...Anyway, after getting this error yesterday, i turned off my pc and today when i turned on my pc and opened my solution...The visual studio windows is blank.I noticed that the PLATFORM was changed to ANY CPU which had been x64 till today.Then i changed it back to x64.Then i went to solution explore and tried to open a form.But every form i try to open...vs takes forever to open the form showing "OPENING THE FILE..."..Then i closed and restarted vs, wen to solution explorer>references and WOOOOOAAAHHHHHHH...ALL MY REFERENCES GOT YELLOW TRIANGLE...I can't work on my project any more...Please somebody help me...

    I tried changing the .net framework version from 4.5.2 to 4.5 and again setting it back to 4.5.2(4.5.2 is what i had been using) but with no luck.Please help me!

    Thursday, November 16, 2017 12:51 PM

All replies

  • If you edit the project (.vbproj) file with notepad you could remove all the references to the gembox.

    On a sidenote, there are more reasons not to use 3rd party controls than there are reasons to use them. Looks like you have run into reason  #134

    Live as if you were going to die today, learn as if you were going to live forever -Mahatma Gandhi

    Thursday, November 16, 2017 2:31 PM
  • Hi Aousaf,

    According to your description, you said that your project works fine before, and you have this error message when you installed gembox.speerdsheed, so I think you may go to gembox site to seek better and more professional help.

    Best Regards,


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    • Proposed as answer by Stanly Fan Monday, November 20, 2017 12:55 AM
    Friday, November 17, 2017 8:33 AM