1. PATH does not contain java reference
If PlantDesigner does not start, check the java path. Go to System Properties and click the Advanced tab. Select Environment Variables.
![](https://www.crenger.com/go/images/java1.png)
Add the java bin directory to your PATH. Restart computer.
![](https://www.crenger.com/go/images/java2.png)
Finally add your java to applications allowed to communicate through Windows Defender Firewall.
![](https://www.crenger.com/go/images/java3.png)