Details

This message is generated when the indicated expression is expected to be a string, an expression with a head of InputStream or OutputStream, or a list of expressions of this form.
Off[message] switches off the message; On[message] switches it on. For example: Off[General::strml].

Examples

The first argument in Write is a symbol rather than a string or a stream:

Wolfram Language code: Write[TEST, OutputForm["output to file"]]

This shows valid arguments in Write:

Wolfram Language code: Write["TEST", OutputForm["output to file"]]

Close the output stream, and remove the file:

Wolfram Language code: Close["TEST"];DeleteFile["TEST"]

Top