Conan: [bug][triaging] shared_library_package_id() makes conan create call fail with empty error message

[jbatnozic]

Environment Details

• Operating System+version: macOS Catalina 10.15.4
• Compiler+version: apple-clang 10.0
• Conan version: 1.26.0 (error not exclusive to this version)
• Python version: 3.7.7

Steps to reproduce

The minimal code which displays the problem, along with more details and reproduction steps is uploaded here.

Basically, the issue is that if you have a chain of dependencies which are by default static, except the top-level one which you want to build as shared, you have to call shared_library_package_id() in its package_id method so that all package IDs are generated properly. However, if any of the upstream dependencies are not available in cache and need to be built locally, package creation fails with an empty error message.

Logs (Executed commands with output)

conan-log.txt

[jgsogo]

Hi! Thanks for submitting a reproducible example. I've removed some bits that are not needed to reproduce the bug. I'll add it as a test to reproduce (and fix) it in the codebase.

package1.py

from conans import ConanFile

class Package1Conan(ConanFile):
    name = "package-1"
    settings = "os", "arch", "compiler", "build_type"
    options = {"shared": [True, False]}
    default_options = {"shared": False}

package2.py

from conans import ConanFile

class Package2Conan(ConanFile):
    name = "package-2"
    settings = "os", "arch", "compiler", "build_type"
    options = {"shared": [True, False]}
    default_options = {"shared": False}
    requires = "package-1/1.0@error/test"

package3.py

from conans import ConanFile, CMake, tools

class Package3Conan(ConanFile):
    name = "package-3"
    settings = "os", "arch", "compiler", "build_type"
    options = {"shared": [True, False]}
    default_options = {"shared": False}

    requires = "package-2/1.0@error/test"

    def package_id(self):
        self.info.shared_library_package_id()

Prepare the cache:

conan create package1.py  package-1/1.0@error/test
conan create package2.py package-2/1.0@error/test

---

Failure 1:

conan create ./package-3/ 1.0@error/test -o package-3:shared=True --build=package-1

package-1/1.0@error/test: Forced build from source
Installing package: package-3/1.0@error/test
Requirements
    package-1/1.0@error/test from local cache - Cache
    package-2/1.0@error/test from local cache - Cache
    package-3/1.0@error/test from local cache - Cache
Packages
    package-1/1.0@error/test:103f6067a947f366ef91fc1b7da351c588d1827f - Build
    package-2/1.0@error/test:36138b371baf7b74ebc20a3bb39e86331f10e311 - Cache
    package-3/1.0@error/test:Package_ID_unknown - Unknown
...
package-3/1.0@error/test: Unknown binary for package-3/1.0@error/test, computing updated ID
package-3/1.0@error/test: Updated ID: Package_ID_unknown
Traceback (most recent call last):
  File "/Users/jgsogo/dev/conan/conan/conans/client/command.py", line 2051, in run
    method(args[0][1:])
  File "/Users/jgsogo/dev/conan/conan/conans/client/command.py", line 371, in create
    info = self._conan.create(args.path, name, version, user, channel,
  File "/Users/jgsogo/dev/conan/conan/conans/client/conan_api.py", line 94, in wrapper
    return f(api, *args, **kwargs)
  File "/Users/jgsogo/dev/conan/conan/conans/client/conan_api.py", line 374, in create
    create(self.app, ref, graph_info, remotes, update, build_modes,
  File "/Users/jgsogo/dev/conan/conan/conans/client/cmd/create.py", line 45, in create
    deps_install(app=app,
  File "/Users/jgsogo/dev/conan/conan/conans/client/manager.py", line 76, in deps_install
    installer.install(deps_graph, remotes, build_modes, update, keep_build=keep_build,
  File "/Users/jgsogo/dev/conan/conan/conans/client/installer.py", line 295, in install
    self._build(nodes_by_level, keep_build, root_node, graph_info, remotes, build_mode, update)
  File "/Users/jgsogo/dev/conan/conan/conans/client/installer.py", line 421, in _build
    self._binaries_analyzer.reevaluate_node(node, remotes, build_mode, update)
  File "/Users/jgsogo/dev/conan/conan/conans/client/graph/graph_binaries.py", line 360, in reevaluate_node
    assert node.package_id != PACKAGE_ID_UNKNOWN

[memsharded]

This was fixed in https://github.com/conan-io/conan/pull/7353, will be released next 1.28. Thanks for reporting @jbatnozic !