c++ - AwsStringStream.h: No such file or directory -

i working on tutorial in link. have libraries , aws-cpp-sdk installed. have aws folder inside /usr/local/include.

when make cpp file, have error   sudo make -- configuring done -- generating done -- build files have been written to: /home/softwares/projects/s3upload/build [100%] building cxx object cmakefiles/s3upload.dir/s3upload.cpp.o /home/softwares/projects/s3upload/s3upload.cpp:4:56: fatal error: aws/core/utils/memory/stl/awsstringstream.h: no such file or directory  #include <aws/core/utils/memory/stl/awsstringstream.h>                                                          ^ compilation terminated. make[2]: *** [cmakefiles/s3upload.dir/s3upload.cpp.o] error 1 make[1]: *** [cmakefiles/s3upload.dir/all] error 2 make: *** [all] error 2 

what wrong? cpp file

#include <aws/s3/s3client.h> #include <aws/s3/model/putobjectrequest.h> #include <aws/s3/model/getobjectrequest.h> #include <aws/core/utils/memory/stl/awsstringstream.h>   using namespace aws::s3; using namespace aws::s3::model;   static const char* key = "xxxxxxxxxxxx";//"s3_cpp_sample_key"; static const char* bucket = "xxxxxx";//"s3-cpp-sample-bucket";  int main() {     s3client client;      //first put object s3     putobjectrequest putobjectrequest;     putobjectrequest.withkey(key)            .withbucket(bucket);      //this can arbitrary stream (e.g. fstream, stringstream etc...)     auto requeststream = aws::makeshared<aws::stringstream>("s3-sample");     *requeststream << "hello world!";      //set stream put s3     putobjectrequest.setbody(requeststream);      auto putobjectoutcome = client.putobject(putobjectrequest);      if(putobjectoutcome.issuccess())     {         std::cout << "put object succeeded" << std::endl;     }     else     {         std::cout << "error while putting object " << putobjectoutcome.geterror().getexceptionname() <<                 " " << putobjectoutcome.geterror().getmessage() << std::endl;     }       return 0;   } 

my cmakelists.txt is

cmake_minimum_required(version 2.8) project(s3upload)  #this locate aws sdk c++ package can use targets #/usr/src/softwares/awsc++sdk/aws-sdk-cpp/build/ find_package(aws-sdk-cpp)  add_executable(s3upload s3upload.cpp)  #since called find_package(), resolve dependencies, header files, , cflags necessary #to build , link executable.  target_link_libraries(s3upload aws-cpp-sdk-s3) 

are sure aws/core/utils/memory/stl/awsstringstream.h exists under /user/local/include ? note file name case sensitive, sure file name awsstringstream.h ?