Eclipse IDE - Error: Build path specifies execution environment Java SE 1.7

Question

In Eclipse, I am getting an error:

Build path specifies execution environment Java SE 1.7.
There are no JREs installed in the workspace that are st

Answer 1

Try this

 In Eclipse,
your project
-> properties
-> java build path : Libraries
Remove the "JRE System Library[J2SE 1.4]"
-> click "Add Library" button -> JRE System Library
-> select the new "Executin Environment" or Workspace default JRE