1.官网下载Omnet++压缩包(https://omnetpp.org/)，解压到安装文件夹
tar -zxvf omnetpp-5.1.1-src-linux.tgz /opt
2.运行./configure
报错configure: error: Bison not found, needed to build OMNeT++/OMNEST – please install it!
解决办法：安装bison，安装完成后会提示还需要安装的软件包，因此，可以根据Onmet安装文档，直接将所有依赖的软件包都一起安装，命令如下:
sudo apt-get install build-essential gcc g++ bison flex perl tcl-dev tk-dev blt libxml2-dev zlib1g-dev openjdk-6-jre doxygen graphviz openmpi-bin libopenmpi-dev libpcap-dev
3.运行./configurte
报错configure: error: Cannot build Qt apps, probably due to missing or too old Qt packages. Make sure Qt development packages are installed and newer than Qt 5.4. You can disable Qtenv by setting the WITH_QTENV varia
