c++ - Google Protocol Buffers 2.6 iOS - Can't get it working -

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i struggling mightily here, trying build simple "hello world" 64 bit ios application new version 2.6 protocol buffers. i'm quite frustrated, because have been using metasyntactic's native objective-c code couple of years no problems , found encouraged nice workflow. apple demanding 64 bit applications, find project hasn't been updated , when try compile 64 bit, there tons of errors due use of nsinteger.

so i've been trying use latest 2.6 version of protocol buffers, supports c++, , adapt code hit updated apis. furthest i've been able using gist tutorial bennett smith on github i'm stuck , need assistance. tutorial enough build fundamentals getting xcode compile i'm having problems.

the steps have been following in tutorial. i'm doing them again write sure i'm capturing everything:

  1. get script, build, observe bin, include , lib folders correctly created [pass]
  2. create new xcode ios master-detail application in xcode 6.1
  3. move protobuf-2.6.0 folder generated in step 1 xcode project folder
  4. add custom build rule:

process *source files names matching:* `*.proto`  using *custom script:*    cd ${input_file_dir}  ${srcroot}/protobuf-2.6.0/bin/protoc --proto_path=${input_file_dir} ${input_file_path} --cpp_out=${derived_file_dir}    output files  $(derived_file_dir)/$(input_file_base).pb.cc  $(derived_file_dir)/$(input_file_base).pb.h

  1. drag "lib" folder project. adds 3 libraries "link binary libraries" section of "build phases" in project.
  2. add "$(srcroot)/protobuf-2.6.0/include" "header search paths" under "build settings"

  3. create simple test protocol, "test.proto":

    message version { required uint32 major = 1; required uint32 minor = 2; required uint32 buildnum = 3; }

  4. add code appdelegate.h:

#include "test.pb.h"

and that's breaks. "protoc" generation works - can see resulting files test.pb.cc , test.pb.h in derivedsources folder. build error can't make sense of - since think basic c++ include statement:

#include <string>

... throws error "'string' file not found".

how resolve this?

thanks!


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