: LigPlot+ is written in Java and requires the latest version of the Java SE Runtime Environment . Oracle/Sun Java is preferred over other versions to avoid missing classes.
For those who cannot complete a Ligplot download due to firewall or OS restrictions, is the closest equivalent (plip-tool.biotec.tu-dresden.de). Ligplot Download
| Problem | Solution | |---------|----------| | "Can't locate LWP/Simple.pm" | Install Perl module: cpan LWP::Simple | | Blank output diagram | Ensure your PDB has hydrogen atoms (use reduce or OpenBabel to add H) | | Java error on launch | Install Java 8 or 11 (OpenJDK) – LigPlot+ uses legacy Java Swing | | No hydrophobic contacts shown | Increase the "Distance cutoff" (default 3.9 Å → try 4.2 Å) | : LigPlot+ is written in Java and requires