conan search fails on macos. Installed with homebrew.

[illume]

To help us debug your issue please explain:

• [x] I've read the CONTRIBUTING guide.
• [X] I've specified the Conan version, operating system version and any tool that can be relevant.
• [x] I've explained the steps to reproduce the error or the motivation/use case of the question/suggestion.

Macos homebrew installed conan

$ conan --version
Conan version 1.4.4

$ conan search sdl2
Traceback (most recent call last):
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/remote_registry.py", line 66, in _load
    contents = load(self._filename)
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/util/files.py", line 168, in load
    with open(path, 'rb') as handle:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/XXXX/.conan/registry.txt'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/command.py", line 1182, in run
    method(args[0][1:])
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/command.py", line 861, in search
    all_remotes_search = ("all" not in (r.name for r in remote_registry.remotes) and
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/remote_registry.py", line 86, in remotes
    return list(self._remote_dict.values())
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/remote_registry.py", line 99, in _remote_dict
    remotes, _ = self._load()
  File "/usr/local/Cellar/conan/1.4.4/libexec/lib/python3.6/site-packages/conans/client/remote_registry.py", line 68, in _load
    self._output.warn("Remotes registry file missing, creating default one in %s"
AttributeError: 'NoneType' object has no attribute 'warn'

ERROR: 'NoneType' object has no attribute 'warn'

[memsharded]

Yes, indeed a bug:

L860 command.py:

remote_registry = RemoteRegistry(self._client_cache.registry, None)

We will fix it for next release 1.5. In the meantime, please use any other command after installation, rather than search, e.g.

$ #install conan
$ conan remote list
$ conan search sdl2

Only necessary to run conan remote list the first time you run conan after installation in a new machine.

Thanks very much for reporting!

[memsharded]

Also note that by default, conan searches in the conan local cache, which would be empty. There are no official packages yet in conan-cente for SDL, ,

$ conan search sdl2  # local cache, nothing

The bincrafters are working in some recipe for SDL2, check it here:

• Github: https://github.com/bincrafters/conan-sdl2
• Bintray: https://bintray.com/bincrafters/public-conan/sdl2%3Abincrafters/2.0.8%3Astable

You might read about remotes here: https://docs.conan.io/en/latest/uploading_packages/remotes.html (we are going to improve the docs to add something regarding remotes in the getting started).

[illume]

Thanks a lot for the help :)

This seemed to work building it for me (in case some random internet visitor comes across this).

conan remote list
conan remote add bincrafters https://api.bintray.com/conan/bincrafters/public-conan
conan search -r all sdl2
conan install sdl2/2.0.8@bincrafters/stable --build sdl2

[danimtb]

Waiting for merge in #3025 to use new functions of conan_api to solve this

[lasote]

@danimtb It is merged now. You can proceed.