This chapter covers the diagnostic process, diagnostic aids that are provided, and overcoming installation problems. You also use the information in this chapter to help you in diagnosing problems with the HLASM Toolkit Feature.

If a problem occurs while you are using High Level Assembler, or the Toolkit Feature, its cause might not be obvious. It might be an error in your program, in the assembler itself, or in some component of the assembler's operating environment. To help you identify the failure, use the following procedure.