SharePoint: Adding Custom Web Part to Page Layout causes No Parameterless Constructor Exception


After adding a custom web part to a publishing page layout using SharePoint Designer, I tried creating a page instance using the page layout and was presented with the following exception; Exception type: MissingMethodException Exception message: No parameterless constructor defined for this object. at System.RuntimeTypeHandle.CreateInstance(…)    at System.RuntimeType.CreateInstanceSlow(…)    at System.RuntimeType.CreateInstanceImpl(…)    at System.Activator.CreateInstance(…)    … Continue reading SharePoint: Adding Custom Web Part to Page Layout causes No Parameterless Constructor Exception

SharePoint Designer 2010 – “Installation of this Package Failed”


Trying to install the 32 bit version of SharePoint Designer, or the 64 bit version, resulted in a dialog error message saying; The installation of this package failed. With nothing in the event log shedding any light I tried re-downloading the installers, with the same result. My environment was Windows Server 2008 R2 x64 Standard … Continue reading SharePoint Designer 2010 – “Installation of this Package Failed”