Qt错误：运行代码后，在qt中出现protobuf错误

Question

[libprotobuf FATAL ../SaarathyClient/external/google/protobuf/stubs/common.cc:78] This program was compiled against version 2.6.1 of the Protocol Buffer runtime library, which is not compatible with the installed version (3.3.0).  Contact the program author for an update.  If you compiled the program yourself, make sure that your headers are from the same version of Protocol Buffers as your link-time library.  (Version verification failed in "/build/mir-O8_xaj/mir-0.26.3+16.04.20170605/obj-x86_64-linux-gnu/src/protobuf/mir_protobuf.pb.cc".)
terminate called after throwing an instance of 'google::protobuf::FatalException'
  what():  This program was compiled against version 2.6.1 of the Protocol Buffer runtime library, which is not compatible with the installed version (3.3.0).  Contact the program author for an update.  If you compiled the program yourself, make sure that your headers are from the same version of Protocol Buffers as your link-time library.  (Version verification failed in "/build/mir-O8_xaj/mir-0.26.3+16.04.20170605/obj-x86_64-linux-gnu/src/protobuf/mir_protobuf.pb.cc".)
The program has unexpectedly finished.

运行代码时，我遇到了错误。 为了解决这个问题，我已经执行了一些步骤，这些步骤是-

（系统要求==操作系统-Ubuntu 16.04 LTS，Qt创建者-应用程序开发-开源最新V4.5rc）

1. 安装了我的系统中缺少的协议缓冲区V3.5.1。
2. 用新更新更新了Qt。
3. 运行代码后，仍然出现相同的错误。

Answer 1

打开project.pro并替换如下

LIB += -lprotobuf

同

LIBS += /usr/local/lib/libprotobuf.a