Why isn't Xojo detecting the presence of the Valentina plugin (or client) on a new computer? It previously worked fine on another computer.

There are several reasons why this may occur, most of which relate to how you have set up Xojo and plugins. These include:

  • The new computer has an incorrect version of the vComponents directory installed, or it is not installed at all
  • The PATH variable which is used to point to the vComponents directory (and therefore, there DLLs stored there) is not set for the new computer

Another consideration is that you have installed a later version of the Valentina components than is supported by the license. For example, if your 12 months of updates ended on August 30, 2019, and you install the Valentina components released on September 1, 2019, then the new components will not initialize. You can still re-install the previous component set to solve this problem.

You can also reset the PATH variable by removing all of the components and then reinstalling them using the installer. The installer automatically sets the PATH variable correctly.