OpenersNotesSection(Spacer1)Details

This message is generated when (RefLink[SetSystemOptions, paclet:ref/SetSystemOptions]) is used with an option name that is not a known system option.

Known system options can be listed by evaluating (RefLink[SystemOptions, paclet:ref/SystemOptions])[].

(RefLink[Off, paclet:ref/Off])[message] switches off the message; (RefLink[On, paclet:ref/On])[message] switches it on. For example: (RefLink[Off, paclet:ref/Off])[General::sysname].

OpenersPrimaryExamplesSection(Spacer1)Examples  (1)

OpenersExampleSection0(Spacer1)Basic Examples  (1)

The name given in the argument of (RefLink[SetSystemOptions, paclet:ref/SetSystemOptions]) is not a known system option:

SetSystemOptions["PackedArrayOptions"->{"UnpackMessageFlat"->True}]

This sets a system option that enables certain diagnostic messages:

SetSystemOptions["PackedArrayOptions"->{"UnpackMessage"->True}]

Block[{expr=Range[5]},expr+Null]

Turn this system option off:

SetSystemOptions["PackedArrayOptions"->{"UnpackMessage"->False}]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[General, paclet:ref/General])}})}})