Failed to load libGL.so when running Android Emulator in Ubuntu

Starting emulator for AVD 'Nexus'
Failed to load libGL.so
Failed to allocate 2147483648 B: Cannot allocate memory
error libGL.so: cannot open shared object file: No such file or directory
Failed to load libGL.so
error libGL.so: cannot open shared object file: No such file or directory

Two ways to fix the problem:

1st: Create a symbolic link or soft link to /usr folder

  Command: ln -s /usr/lib/libGL.so.1 /tools/lib/libGL.so 

2nd: Install the OpenGL driver

  Command: sudo apt-get install libgl1-mesa-dev