Weather map help

[paheocon]

Some parts of Weathermap need special support in your PHP installation to work.

The gdinfo() function is not available, which means that either the GD extension is not available, not enabled, or not installed.
imagepng() NOCRITICAL This is required for all of Weathermap. It is part of the GD library and the "gd" PHP extension.
imagecreatetruecolor() NOCRITICAL This is required for all of Weathermap. It is part of the GD library and the "gd" PHP extension.
imagealphablending() NOCRITICAL This is required for all of Weathermap. It is part of the GD library and the "gd" PHP extension.
imageSaveAlpha() NOCRITICAL This is required for all of Weathermap. It is part of the GD library and the "gd" PHP extension.
preg_match() YES
imagecreatefrompng() NOCRITICAL This is required for all of Weathermap. It is part of the GD library and the "gd" PHP extension.
imagecreatefromjpeg() NOnon-critical This is required for JPEG input support for ICON and BACKGROUND. It is an optional part of the GD library and the "gd" PHP extension.
imagecreatefromgif() NOnon-critical This is required for GIF input support for ICON and BACKGROUND. It is an optional part of the GD library and the "gd" PHP extension.
imagejpeg() NOnon-critical This is required for JPEG output support. It is an optional part of the GD library and the "gd" PHP extension.
imagegif() NOnon-critical This is required for GIF output support. It is an optional part of the GD library and the "gd" PHP extension.
imagecopyresampled() NOnon-critical This is required for Thumbnail creation in the Cacti plugin. It is an optional part of the GD library and the "gd" PHP extension.
imagettfbbox() NOnon-critical This is required for TrueType font support. It is an optional part of the GD library and the "gd" PHP extension.
memory_get_usage() YES

Please help me with this problem. My cacti is 0.8.8f and weather map is 0.97c

[Howie]

On what operating system/distro?

You need to install and enable the 'gd' module in PHP. On most linux systems this is a simple package installation.

e.g. on Ubuntu 16.04, it would be "sudo apt install php5.6-gd"

[paheocon]

On what operating system/distro?

You need to install and enable the 'gd' module in PHP. On most linux systems this is a simple package installation.

e.g. on Ubuntu 16.04, it would be "sudo apt install php5.6-gd"

Thank alot man, actually i have fixed it because my php is 7.0.2 version. Now i met this error:
The map config directory is not writable by the web server user. You will not be able to edit any files until this is corrected
Im using ubuntu and my directory to config file is
/usr/share/cacti/site/plugins/weathermap/

Pls help me solve this one.