FAQ

Frequently Asked Questions

• Python error
• UUID not found at installation

Python error

If you get an error like

ERROR: LoadError: PyError (PyImport_ImportModule

It is likely that Julia does not use the correct Python and the error message contains "PyCall is currently configured to use the Julia-specific Python distribution". To reconfigure Julia to use the system Python 3, run:

export PYTHON=$(which python3)
julia -e 'using Pkg; Pkg.build("PyCall")'

Or if your system Python 3 is just python

export PYTHON=$(which python)
julia -e 'using Pkg; Pkg.build("PyCall")'

UUID not found at installation

If you run into an error looking like

ERROR: cannot find name corresponding to UUID

It looks like General Julia registry has occasional problems. If you get an error during add/dev/update/resolve packages that General registry cannot by update try the following from package manager (after typing ]):

pkg>  registry remove General
pkg>  registry add General

That should pull the fresh version of General registry.

In case this throws a second error registry General not found. you can add back the Genral Julia registry via

julia -e 'using Pkg; Pkg.Registry.add(RegistrySpec(url="https://github.com/JuliaRegistries/General.git"))'