TypeError: $ is not a function when calling jQuery function

I got this error with one of the plugins in Wordpress. The solution was to edit the JS source file of the WP plugin, and replacing references of "$" with "jQuery".

More info:

• http://stackoverflow.com/questions/18295538/how-to-fix-typeerror-is-not-a-function-error-in-wordpress-custom-page
• https://wordpress.org/support/topic/resolved-solving-error-typeerror-is-not-a-function