Error Message:

Expecting comma.

Explanation:

This message indicates a reserved token or end of string occurs before the closing brace of a vector property. For example, this is an invalid entry: @VectorString = {A1, B@}. Vectors (VT_VECTOR) are expressed as an opening brace ({), followed by a comma-separated list of values, then a closing brace (}).

User Action:

Make sure there are only comma-separated lists between the braces.