Android Studio: Unable to start the daemon process

1.If You just open too much applications in Windows and make the Gradle have no enough memory in Ram to start the daemon process.So when you come across with this situation,you can just close some applications such as iTunes and so on. Then restart your android studio.

2.File Menu - > Invalidate Caches/ Restart->Invalidate and Restart.

Try deleting your .gradle from C:\Users\<username> directory and try again.