ASMZ126T Dynamic allocation failed for library `library_name`

Explanation
 ASMXREF is unable
to find the library library_name.

System action
 The ASMXREF run
terminates.

Programmer response
 Ensure that the library specified in the ASMXREF control
statement is accessible and specified correctly. If the library is
accessible and no other associated system or job log messages are
issued, consult your IBM® service
representative.