We are currently trying to run a SharePoint 2010 solution in SharePoint 2013 and face the issue that a custom PickerDialog control is not working in the SP2013. In SP2010 it is working perfectly fine.
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.SharePoint, Version=126.96.36.199, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.
Did anyone ever face the same issue and was able to fix it?
Unfortunately upgrading the solution is not an option for us.