构建 conda 包：必须使用 conda-build > 2.0 重新构建该包

Question

I am running into a problem with conda packaging. I use someone's recipe to build a python binding to a C++ library, libvips . When I run a build (within a fresh docker image) I am getting following error:

Build prefix failed with prefix length 255
WARNING:conda_build.environ:Build prefix failed with prefix length 255
WARNING conda_build.environ:create_env(877): Build prefix failed with prefix length 255
Error was:
WARNING:conda_build.environ:Error was:
WARNING conda_build.environ:create_env(878): Error was:
Placeholder of length '80' too short in package /opt/conda/conda-bld/libvips_1561659686802/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_place/bin/csslint-0.6.
The package must be rebuilt with conda-build > 2.0.

First of all, I made sure that conda-build is a right version, and re-build glib before building the actual package of interest:

conda build version:
conda-build 3.18.5
 ---> e0cee3638360
Step 11/12 : RUN conda install -c anaconda glib
 ---> Running in ba9e7daa8d74

The installation of GLib runs well, but the next conda build fails with the same error. This leaves me wondering whether glib it is referring to (in meta.yaml under requirements: build: ) is different from conda glib package and how to specify the package source.

Answer 1

libvips and pyvips now have official conda packages . You should just be able to do:

conda install --channel conda-forge pyvips

And it'll download and install everything.

It includes a libvips binary with most optional packages enabled, including things like openslide and matio . It is currently missing libheif and libjpeg-turbo , but perhaps they will come.

Windows support is blocked on gdk-pixbuf , unfortunately. The pyvips README has some notes on Windows install.