error: Problems running PlantUML.

[Arno Glim]

error: Problems running PlantUML.
Verify that the command 'java -jar "c:\plantuml.jar" -h' works from the command line. Exit code: 29404417

I tried this on Windows XP and on Windows 7 ... same result. Two different PCs.

I have the plantuml.jar in c:\ I am able to run the command from the command line,

All I have is:
/// \startuml
/// Alice -> Bob: test
/// \enduml

Running from the command line produces the png correctly.

What could be wrong?

[Luis Vega]