Calls to transpile fail

[nonhermitian]

Environment

• Qiskit Terra version: master
• Python version:
• Operating system:

What is happening?

Attempting to look at #7341

File "/Users/paul/Desktop/GitHub/qiskit-terra/qiskit/transpiler/passes/synthesis/unitary_synthesis.py", line 208, in run
raise TranspilerError("Specified method: %s not found in plugin list" % self.method)
TranspilerError: 'Specified method: default not found in plugin list'

How can we reproduce the issue?

qc2 = transpile(qc, backend)

What should happen?

it should work

Any suggestions?

No response

[jakelishman]

You likely need to reinstall with pip install -e . to trigger the setuptools entry points to register the unitary synthesis plugins.

[nonhermitian]

I cannot just work in the dir anymore?

[jakelishman]

You can once you've re-run pip install -e . once - the new unitary synthesis method registers an entry point for plugins, and the default plugin (and the AQC) needs to register itself with that. That only needs to happen one time when a new plugin is added, and after that you'll be able to work as before.

[nonhermitian]

Ahh cool. Thanks for the info.