C++ Driver - CMake Error: The source directory "" does not appear to contain CMakeLists.txt.

[Waley Chen]

I'm following the MongoDB C++ Driver Quickstart Guide - https://github.com/mongodb/mongo-cxx-driver/wiki/Quickstart-Guide-(New-Driver)

I cd into the "mongo-cxx-driver/build" directory, then run

"cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local .."

and get this message back:

"CMake Error: The source directory "/Users/Waley/code/mongo-cxx-driver" does not appear to contain CMakeLists.txt."

How do I fix this error?

Thanks,

Waley

[Andrew Morrow]

Hi -

If you run 

ls /Users/Waley/code/mongo-cxx-driver

What is the output? 

Thanks,

Andrew

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[Waley Chen]

Output is the following:

APACHE-2.0.txt

CONTRIBUTING.md

README.md

SConstruct

build docs

etc

site_scons

src

[Waley Chen]

"CMakeLists.txt" is missing but I'm not sure why it's missing or how to get it.

[Andrew Morrow]

Hi -

It looks to me like you have the legacy branch checked out. If you want to build the experimental C++11 driver, you should check out the master branch with 'git checkout master'. The 'legacy' branch is currently the default when cloning since it has the newest stable release.

Thanks,

Andrew

[Waley Chen]

Thanks!

I was able to make it to the next step and ran 

"sudo make && sudo make install"

The build ran to 92% until it hit an error

[ 92%] Building CXX object src/mongocxx/test/CMakeFiles/test_driver.dir/collection.cpp.o

In file included from /Users/Waley/code/mongo-cxx-driver/src/mongocxx/test/collection.cpp:1:

In file included from /Users/Waley/code/mongo-cxx-driver/src/third_party/catch/include/catch.hpp:408:

/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/vector:1089:9: error: no matching member function for call to 'push_back'

        push_back(*__first);

        ^~~~~~~~~

/Users/Waley/code/mongo-cxx-driver/src/mongocxx/test/collection.cpp:426:47: note: in instantiation of function template specialization 'std::__1::vector<bsoncxx::v0::document::value,

      std::__1::allocator<bsoncxx::v0::document::value> >::vector<mongocxx::v0::cursor::iterator>' requested here

        std::vector<bsoncxx::document::value> results(distinct_results.begin(),

                                              ^

/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/vector:700:36: note: candidate function not viable: no known conversion from 'const bsoncxx::document::view' to 'const value_type'

      (aka 'const bsoncxx::v0::document::value') for 1st argument

    _LIBCPP_INLINE_VISIBILITY void push_back(const_reference __x);

                                   ^

/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/vector:702:36: note: candidate function not viable: no known conversion from 'const bsoncxx::document::view' to 'value_type'

      (aka 'bsoncxx::v0::document::value') for 1st argument

    _LIBCPP_INLINE_VISIBILITY void push_back(value_type&& __x);

                                   ^

1 error generated.

make[2]: *** [src/mongocxx/test/CMakeFiles/test_driver.dir/collection.cpp.o] Error 1

make[1]: *** [src/mongocxx/test/CMakeFiles/test_driver.dir/all] Error 2

make: *** [all] Error 2

[Andrew Morrow]

Hi -

I'll need a few other pieces of information:

- What is the exact CMake invocation you are using?

- What is the local OS and version (looks like OS X)

- What is the toolchain, and version (e.g. output of --version)

Thanks,

Andrew

[adam.m...@10gen.com]

Hi Waley,

I've managed to reproduce your compile failure using Apple LLVM 5.1 (clang 3.4). Is that the toolchain you are using? If you are not sure please paste the output of 

$ clang++ --version

I've filed an ticket in our issue tracker to fix this.

As a temporary workaround, can you can comment out the last line of src/mongocxx/CMakeLists.txt. You just need to put a '#' character in front of the line 'add_subdirectory(testing)'. Then you can rerun cmake and re-execute the make invocation.

Let me know if this works.

Thanks,

Adam

[Waley Chen]

Holy crap that was a fast fix.

Pulled latest, everything works now.

Thanks!!!