This message appears when Corona fails to identify and process the text entered into the string options field which can be found in Development / Experimental Stuff rollout.
Syntax example:
type name = value
for example:
float mtlEditor.lightsIntensity = 2.5
Possible causes:
- Typo in the entered string option
- The entered string option was deprecated
- Attempting to use a string option in an incorrect way
- The entered string option is only available in newer Corona versions
Solutions:
- Make sure the string options are supposed to work in the version of Corona you are currently using
- Make sure the string options are correctly written, including text formatting, spaces and special characters
See: String Options