In an effort to better protect the Eclipse Marketplace users, we will begin to enforce the use of HTTPS for all contents linked by the Eclipse Marketplace on October 14th, 2022. The Eclipse Marketplace does not host the content of the provided solutions, it only provides links to them. We are actively working with owners of existing solutions with plain HTTP entries to fix them. Beginning December 15th, non-compliant solutions will be unpublished from the Eclipse Marketplace. You can follow this effort on the tracking issue for more details.
Introducing the Eclipse Marketplace Client
You may have tried to install Dart Designer by clicking the Install button
To install this solution to your Eclipse installation, ensure that:
Eclipse is launched and that you click and hold the mouse button while dragging the Install button icon over the Eclipse workspace and then drop it, by releasing the mouse button, onto an open Workspace
You have the Eclipse Marketplace Client (mpc). This will appear in the Help menu as 'Eclipse Marketplace...', and is included with all of the packages available from the Eclipse download page (except Classic Package).
To try to install the Dart Designer solution again, you can use this button:
Eclipse Marketplace Client (MPC) is a rich client interface for browsing and installing the Eclipse based solutions listed on the Eclipse Marketplace portal. It is a new feature that allows Eclipse users to discover and install Eclipse solutions directly into their Eclipse installation.