Yes it is. I even tried renaming my 1.7.2 folder, recreatign it, redownloading 1.7.2 jar from https://s3.amazonaws.com/Minecraft.Download/versions/1.7.2/minecraft_server.1.7.2.jar and then downloading the newest release of forge and copying that jar to the 1.7.2 folder. The minecraft_server.1.7.2.jar runs no problem and I can log in to it from my client side computer. However Forge is still not launching.