Invalid parameter

This error occurs when the @ sign, which indicates a parameter, is not followed by a valid identifier.

Inside classes, this error also occurs when the parameter has not been declared. Parameters in classes must always be declared by a parameter block.

Examples:

@
@0.9

Remove the @ sign, or put a valid identifier (a letter followed by a letters and digits) behind it:

@param
0.9

See Also
Errors