Description
A variable name must not contain invalid characters, and must start with a letter.
Solution
Follow proper variable naming conventions:
- Names must begin with a letter, not a number or special character such as an asterisk (*) or percent sign (%).
- Names should not contain special character such as spaces. If you have a two-part name for a variable, connect the words with an underscore ( _ ), for example, land_use.
- The recommended length for names is limited to a maximum of 10 characters.