Eclipse - An internal error occurred during: “Compute launch button tooltip”

Question

I launched Eclipse earlier to jot down a snippet and was faced with the following as an error when I tried to run a fresh project:

An internal error occur

Answer 1

Try setting the launch properties in:

Window>Preferences>Run/Debug(Expand)>Launching(Click)

Under launch Operations menu set it to:

Always launch the previously launched application

Click:

Apply>Ok