Build Failure on ports-10.14_x86_64: sdf2-bundle

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.14_x86_64
Full logs:    https://build.macports.org/builders/ports-10.14_x86_64-watcher/builds/1758
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    sdf2-bundle
Subport list:
	- sdf2-bundle
Variants:     None
Revision:     d8a118f99caf18631b70e54d8ca93a05e01fe779
Build time:   0:01:51
Author:       Ken <21211439+kencu at users.noreply.github.com>

Log from failed builds:
	Building 'sdf2-bundle' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .

Broken ports:
	- sdf2-bundle

Links to individual build jobs:
- ports-10.14_x86_64-builder #14640
  https://build.macports.org/builders/ports-10.14_x86_64-builder/builds/14640

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MacPorts Buildbot
https://build.macports.org/