HLASM Programmer's Guide
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ASMA418C

HLASM Programmer's Guide
SC26-4941-06

Unable to open ADATA file

Explanation

The assembler encountered an error when attempting to open the associated data file. This is typically caused by a job control language error.

System action

The assembly stops and no listing is produced.

Programmer response

Check the JCL for the SYSADATA ddname (z/OS and CMS), or the SYSADAT file (z/VSE).

Severity

16

Parent topic: Messages

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