It's getting frequent that people cannot start LP, because of the following error:

java.lang.RuntimeException: LogisticsPipes could not find its class transformer.
If you are running MC from an IDE make sure to copy the 'LogisticsPipes_dummy.jar'
to your mods folder. If you are running MC normal please report this as a bug at
'https://github.com/RS485/LogisticsPipes/issues'.

My guess in the dark is that some anti-virus mechanism is doing this, because a corrupt download would corrupt the whole ZIP structure. So apart from the fact that nobody really knows why that occurs, the message should be different. I think we can say that the cause of a missing class transformer cannot be our code. And for dev environment, we might just check for gradle/eclipse/IDEA to print another message.