通过柯南安装仅标头包时出错答案

【问题标题】：Error installing header only package via conan通过柯南安装仅标头包时出错
【发布时间】：2019-06-19 21:27:55
【问题描述】：

我有一个使用 CMake 构建的仅包含头文件的内部 C++ 库。我关注了柯南的instructions 关于如何打包仅头文件的库，最终得到了这个 conanfile.py：

#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
Conan file for KVAPI.

https://docs.conan.io/en/latest/howtos/header_only.html
"""

from conans import ConanFile, CMake


class KVAPIConan(ConanFile):
    name = "kvapi"
    version = "0.1.0.0"
    description = "Kiwi API library"
    exports_sources = "include/*"
    topics = ("kv", "kvapi", "C++")
    no_copy_source = True

    def package(self):
        self.copy("*.hpp")

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

我是这样创建包的：

> conan create . kvapi/0.1.0.0@kiwi/testing
> conan upload kvapi* -r genetec

然后安装它：

> conan install kvapi/0.1.0.0@kiwi/testing

导致错误：

Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MD
compiler.version=15
os=Windows
os_build=Windows
[options]
[build_requires]
[env]

kvapi/0.1.0.0@kiwi/testing: Retrieving from server 'genetec'
kvapi/0.1.0.0@kiwi/testing: Trying with 'genetec'...
Downloading conanmanifest.txt
[==================================================] 848B/638B
Downloading conanfile.py
[==================================================] 513B/456B
kvapi/0.1.0.0@kiwi/testing: Downloaded recipe revision 0
Installing package: kvapi/0.1.0.0@kiwi/testing
Requirements
    kvapi/0.1.0.0@kiwi/testing from 'genetec' - Downloaded
Packages
    kvapi/0.1.0.0@kiwi/testing:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Missing

kvapi/0.1.0.0@kiwi/testing: WARN: Can't find a 'kvapi/0.1.0.0@kiwi/testing' package for the specified settings, options and dependencies:
- Settings:
- Options:
- Dependencies:
- Package ID: 5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9

ERROR: Missing prebuilt package for 'kvapi/0.1.0.0@kiwi/testing'
Try to build it from sources with "--build kvapi"
Or read "http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package"

这对于只有标头的库来说是预期的吗？

【问题讨论】：

标签： c++ cmake conan

【解决方案1】：

在上传柯南包时，您也需要明确何时要上传二进制包。

conan upload kvapi* -r genetec 命令只上传配方，不上传创建的包。要同时上传包含这些标头的配方包和二进制包，您需要添加参数--all

conan upload kvapi* -r genetec --all

参考：https://docs.conan.io/en/latest/uploading_packages/uploading_to_remotes.html

【讨论】：