Amir,
I could configure GlassFish 4.1.1 in the latest MyEclipse 2016 without any issues.
Can you please clarify if you are pointing to the “glassfish” folder which is the correct path to the GlassFish installation directory : Ex: D:\Servers\glassfish4.1.1\glassfish4\glassfish ?
If you are still seeing issues, then please send us a screenshot of the GlassFish connector and the MyEclipse Version and Build id details from Help > About MyEclipse section to help us investigate further.
Let us know how it works for you.
–Swapna
MyEclipse Support