[SOLVED] Cannot find "Findaws-lambda-runtime.cmake" on ubuntu18.04

Issue

Trying to build the hello world example, but the cmake always complain

By not providing "Findaws-lambda-runtime.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "aws-lambda-runtime", but CMake did not find one.

Environment

• OS : ubuntu18.04.3 LTS,64bits
• install curl by : sudo apt-get install libcurl4-openssl-dev
• install cmake by ubuntu software(cmake version 3.16.1)

Steps to build and install aws lambda cpp

1. git clone https://github.com/awslabs/aws-lambda-cpp.git
2. cd aws-lambda-cpp
3. mkdir build
4. cd build
5. cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF \ -DCMAKE_INSTALL_PREFIX=${PWD}/install
6. make -j2
7. sudo make install

CmakeLists.txt(omit another part, want to make sure find_package works first)

cmake_minimum_required(VERSION 3.5)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

project(aws_cpp_test LANGUAGES CXX)

list(APPEND CMAKE_MODULE_PATH "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/build/")
list(APPEND CMAKE_MODULE_PATH "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake/")

find_package(aws-lambda-runtime REQUIRED)

add_executable(${PROJECT_NAME} "main.cpp")

I do not use the ec2 to build the project, how could I tell the cmake where should it find the aws-lambda-runtime?

Edit :

Based on the suggestion of Yevhenii Mamontov, I change the CMakeLists.txt to

cmake_minimum_required(VERSION 3.5)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

project(aws_cpp_test LANGUAGES CXX)

set(AWS_LAMBDA_CMAKE "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake/")
set(CMAKE_PREFIX_PATH "${AWS_LAMBDA_CMAKE};${CMAKE_PREFIX_PATH}")
#check the prefix paths are correct or wrong
foreach(path ${CMAKE_PREFIX_PATH})
  message("Path: " ${path})
endforeach(path)

find_package(aws-lambda-runtime REQUIRED)

But it come with different error message

CMake Error at /home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake/aws-lambda-runtime-config.cmake:6 (include): include could not find load file:

/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake/@[email protected]

I tried with different paths

set(AWS_LAMBDA_CMAKE "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/build/install")
set(AWS_LAMBDA_CMAKE "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/build/install/lib/aws-lambda-runtime/cmake")

and tried to do not add any new path, but all of them give the same error messages

Edit 2 :

Find a way to make it work

1. Remove the contents of /home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake/aws-lambda-runtime-config.cmake
2. set path as set(AWS_LAMBDA_CMAKE "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/build/install/lib/aws-lambda-runtime/cmake")

However, this solution is awkward, should ask the cmake do not search from the path "/home/yyyy/Qt/3rdLibs/aws-lambda-cpp/cmake" first

Edit 3:

The solution I written in Edit 2 do not work. It fail when I add

add_executable(${PROJECT_NAME} "main.cpp")
target_link_libraries(${PROJECT_NAME} PUBLIC AWS::aws-lambda-runtime)

Error messages are

Target "aws_cpp_test" links to target "AWS::aws-lambda-runtime" but the target was not found. Perhaps a find_package() call is missing for an IMPORTED target, or an ALIAS target is missing?

Solution

Find out the solution, all you need to do are set the path of the aws library installed.

Example:

cmake_minimum_required(VERSION 3.5)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

project(encoder LANGUAGES CXX)

set(AWS_LAMBDA_CMAKE ${CMAKE_CURRENT_SOURCE_DIR}/../../3rdLibs/aws-lambda-cpp/build/install/)
set(AWS_LAMBDA_CPP_SDK ${CMAKE_CURRENT_SOURCE_DIR}/../../3rdLibs/aws-sdk-cpp/build/install/)
set(CMAKE_PREFIX_PATH "${AWS_LAMBDA_CMAKE};${CMAKE_PREFIX_PATH};${AWS_LAMBDA_CPP_SDK}")

find_package(CURL REQUIRED)
find_package(aws-lambda-runtime REQUIRED)
find_package(AWSSDK COMPONENTS s3)

add_executable(${PROJECT_NAME} "main.cpp")
target_link_libraries(${PROJECT_NAME}
${CURL_LIBRARIES}
AWS::aws-lambda-runtime
${AWSSDK_LINK_LIBRARIES})

aws_lambda_package_target(${PROJECT_NAME})

You may need to install following libs on your ubuntu if you haven't

sudo apt-get install zlib1g-dev libssl-dev libcurl4-openssl-dev

Answered By - StereoMatching