Alternative installation: step-by-step gazebo

Here are the steps to install Gazebo step-by-step using the alternative installation method:

1. Install Dependencies

Open a terminal and execute the following commands:

sudo apt-get update
sudo apt-get install build-essential cmake git libfreeimage-dev libpcre3-dev libglew-dev libxrandr-dev libglfw3-dev libopenal-dev libjpeg-dev libfreetype6-dev libudev-dev

2. Clone Gazebo Repository

Clone the Gazebo repository using the following command:

git clone https://github.com/osrf/gazebo.git

3. Build and Install Gazebo

Create a build directory inside the Gazebo repository and navigate to it:

cd gazebo
mkdir build
cd build

Configure the build using cmake:

cmake ../ -DCMAKE_INSTALL_PREFIX=/usr

Note: You can modify the installation directory by changing the value of `CMAKE_INSTALL_PREFIX`.

Build the Gazebo project:

make -j4

Install Gazebo:

sudo make install

4. Test Installation

To test the installation, open a new terminal and run the following command:

gazebo

If Gazebo launches successfully, the installation is complete and you're ready to use Gazebo.