I am developing an Eclipse RCP application. Therefore I am trying to implement an ISelectionListener. Therefore I have to import the package "org.eclipse.ui". When i wanted to import the package the error that I have add the package to my project. When I did this an then want to start my Application an Errorwindow like the folowing appears: https://i.sstatic.net/kVTAO.png (Sorry my reputation is to low to post some images)
In my case it contains more items but all with the error: "Missing Constraint: Import-Package" or "Required-Bundle". I was trying to add the packages to my manifest file as explained in the error but this does not change anything.
Thanks for your help.
The error you have is about inconsistent set of "Plug-ins" selected for Run/Debug configuration.
By default you are running with "all workspace and enabled target plug-ins" that may be not an optimal choice for RCP development. You can try to change it to "plug-ins selected below only" and then tune it manually.
For example you can uncheck everything except plug-ins that declare the product and the application and then use "Add Required Plug-ins" button.
