Missing a temporary folder is most common error in wp project.Sometimes when we upload a file like wordpress or any other php project we shows an error that Missing a temporary folder.In this article we know how to solve this missing a temporary folder error.When we upload file the first file is uploaded in a temporary folder,if your php.ini did not set any upload temporary folder or set wrong temporary folder it will shows missing a temporary folder.To solve this Create a /tmp folder and give it 777 permission.To solve in your local server you need to open your php.ini file and change your temporary upload directory.
Solve in Local Server
If you shows this error on your hosting server Create a /tmp folder and give it 777 permission. Also create a php.ini in your hosting root and put a line like below
Solve in Hosting Server
upload_tmp_dir = /home/username/public_html/tmp
Solve in WordPress
If you face this problem in your wordpress project copy this php.ini file in your wp-admin folder.After that it will solve and you are happy.