OMNET++ 无法加载图像

Question

我是 OMNET++ 的新手，但我对下面的错误感到很疯狂，因此我无法根据教程运行我的单个 tic-toc 模拟...我搜索了谷歌，但没有其他人有一样的问题。 错误信息是：

OMNeT++ Discrete Event Simulation  (C) 1992-2018 Andras Varga, OpenSim Ltd.
Version: 5.4.1, build: 180629-5e28390, edition: Academic Public License -- NOT FOR COMMERCIAL USE
See the license for distribution terms and warranty disclaimer

Setting up Qtenv...

Loading NED files from .:  1
Loading NED files from ../src:  2

Loading images from '/Users/junpan/omnetpp-5.4.1/images': *: 0  abstract/*: 90  background/*: 4  block/*: 320  device/*: 195  logo/*: 1  maps/*: 9  misc/*: 70  msg/*: 55  old/*: 111 Could not load image '/Users/junpan/omnetpp-5.4.1/images/old/app.gif'
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This application failed to start because it could not find or load the Qt platform plugin "cocoa"
in "".

Reinstalling the application may fix this problem.

Simulation terminated with exit code: 134
Working directory: /Users/junpan/samples/PJtictoc/simulations
Command line: ../src/PJtictoc -m -n .:../src omnetpp.ini

Environment variables:
PATH=/Users/junpan/omnetpp-5.4.1/bin::/usr/bin:/bin:/usr/sbin:/sbin
DYLD_LIBRARY_PATH=/Users/junpan/omnetpp-5.4.1/lib::
OMNETPP_IMAGE_PATH=/Users/junpan/omnetpp-5.4.1/images

我想也许我的omnet++安装不完整，但是我试图从官方页面重新安装OMNET++，最近我更新了QT但它不起作用。 QT 可以独立运行。错误码需要的图片在目录中不存在，但是我的代码中没有调用，简单的tic-toc怎么会需要这样的图片呢？ 我现在该怎么办？ 这个人有同样的问题，但仍然没有解决...... unsolved google group problem

Answer 1

我通过在运行配置中将 QT_PLUGIN_PATH 显式设置为与 omnet++ (YourOmnetppDirectory/tools/macosx/plugins/) 捆绑的 qt 来解决此问题。适用于 macOS。

Answer 2

发生这种情况是因为与 OMNeT++ 捆绑在一起的 QT 安装找不到它的插件，因此又无法在模拟器启动时加载默认的 OMNeT++ 图像。确保您已正确遵循安装指南。捆绑的 QT 库是在 OMNeT++ 配置过程中设置的（即在您运行 ./configure 时）。此时配置脚本会自动设置插件的位置。简而言之，请确保：

从你的主目录中解压 tgz 文件

$ . setenv
$ ./configure
$ make -j=8 
$ cd samples/aloha
$ ./aloha

尝试在那里运行示例以查看 Qtenv 是否正常工作。

另一种解决方法：使用 Tkenv（这是旧的基于 Tk 的环境）。 IE。开始模拟：

$ ./aloha -u Tkenv