Retrieving the COM class factory for component with CLSID {} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Problem:

 You face the below error message while building a project in the Visual Studio

Solution:

  1. Go to Solution Explorer of the project in the Visual Studio IDE.
  2. Right click the project.
  3. Choose Properties. (Or press Alt+Enter after left click the project in Solution Explorer)
  4. Go to Build tab.
  5. Choose x64 in the Platform target drop down list box
  6. Rebuild the project.