One or more constraints have not been satisfied.(SAPUI5+Eclipse)

I was getting this error but now it is working. 

Solution:

initially JDK compiler was set 1.4 but in my system 1.6 was there. so just i have made JDK compiler 1.6.

 

Please follow the below steps for correct setting-

 

Window Menu->Preference ->Compiler->JDK Compiler

                                            Choose the compiler version as you have installed in system

 

Hope to help you!