Can't launch projectile?

[TheSebakl]

it will not being solved scratic, if you see this post

PSA: SpongeAPI 4.0 and what it means for YOU!

We’re making the release of SpongeAPI 4.0.1 after two months of development additions and minor breakages. Many of these breakages have been made for better quality of life adjustments. For those who are still developing against SpongeAPI 3.1-SNAPSHOT, we’ll also be making a small release of 3.1.0. Any further additions to the API will be made against 4.1-SNAPSHOT. ###What version of Minecraft is this for? 4.0.0 is targeted for Minecraft 1.8.9. As previously mentioned, Sponge does not back por…

• “Refactor SpawnCause for proper implementation, provides abstract SpawnCauses for plugin extension”

i don’t know if it is a bug or if there is an other way