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sitecoreglass-mapper

GlassMapper - Boolean method not found HasValue

just installed glass mapper on a new Sitecore 8.1 solution and as soon as I loaded up the site I keep getting the following error - more details in screenshot.

Any thoughts?

Method not found: 'Boolean Glass.Mapper.ExtensionMethods.HasValue(System.String)'.

enter image description here

Solution

  • I guess you refferenced a wrong Glass.Mapper.dll from a old version of GlassMapper

    Can you check if you have this method 

      /// <summary>
/// Indicates whether the specified string has a value, i.e. Not null or empty
/// 
/// </summary>
public static bool HasValue(this string target)
{
  return !ExtensionMethods.IsNullOrEmpty(target);
}

    inside class Glass.Mapper.ExtensionMethods

    I checked on GlassMapper vers 4.0.5