conan配置问题

[playactorzxc]

我是第一次接触conan，下载了最新的conan版本2.0.14，导致conan install失败，我找到了conancenter ，更新了conanfile.txt文件内容为

[requires]
openssl/1.0.2u
[generators]
CMakeDeps
CMakeToolchain
[layout]
cmake_layout

然后执行cmake ..失败了，报错如下：

CMake Error at CMakeLists.txt:5 (include):
  include could not find requested file:

    D:/Github/openssl_rsa/build/conanbuildinfo.cmake


CMake Error at CMakeLists.txt:6 (conan_basic_setup):
  Unknown CMake command "conan_basic_setup".

你能够帮我完成新的CMakeList吗，或者我需要回退conan版本到哪个版本可以完成编译 感谢！