■ More than one condition can cause this error:
 
  • The variable specified is not of the required type. For
    example, you tried to use the SWAP statement with a string
    variable and a numeric variable, or with two numeric
    variables of different types.
 
  • You tried to specify an alphanumeric label with the RUN
    statement.
 
  • In form code, you tried to specify an object that cannot
    be found, or explicit reference to the object is required.
 
  • In a multiple-module program, you have mismatched COMMON
    statements.
 
  • During an ISAM OPEN FOR operation, the data type of a
    record element does not match the data type of a table
    column.
 
  • During an ISAM INSERT operation, the number of elements in
    the record does not match the number of columns in table,
    or the data type of a record element does not match the
    data type of a table column.
 
  • During an ISAM RETRIEVE operation, the data type of a
    record element does not match the data type of a table
    column.
 
  • In an ISAM SEEKoperand statement, there is a data type
    mismatch between the keyvalue argument and the current
    index.
 
  • During an ISAM UPDATE operation, the record variable is
    not the same user-defined type as the table you are
    attempting to update.
 
■ If you need additional help, move the cursor to a keyword
  and press F1 to open the Help window.