> For the complete documentation index, see [llms.txt](https://tracer.gitbook.io/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tracer.gitbook.io/manual/support/troubleshooting/power-shell.md).

# Windows: PowerShell

```
Error: Could not find or load main class .etrap.medusa.config.ClassConfig=conf.tracer_config.xml
```

**Cause**: Windows PowerShell seems to misinterpret the class due to the `-` in the command. In other words, it looks for `.etrap.medusa.config.ClassConfig=conf.tracer_config.xml` instead of `-Deu.etrap.medusa.config.ClassConfig=conf/tracer_config.xml`

**Solution**: Do not use the PowerShell but switch to the Command Line.