Hello There! I know, that a same thread already exist but the solution there doesn't work anymore. If I'm trying to go into the Twillight Forest Dimension with the Nether Portal thing it always says: InvalidWorldException: The specified world "DIM-7" is not a valid world. <<main code>>:navigation.bind:164 The sloution on the old thread was to make the "standard" TFP but if i will do that it doesnt work and the chat says i should use the nether portal. The only way how i can get into this dimension is to enter a "standard" portal that already exists. I would like to thank star98freak for his/her help. Okay that should do it. If someone had the same Problem and know a good solution... Please post it here! Thank you!!!
