Need help in Support & Bug Reports Posted June 16, 2012 Hi, I'm not really aware of how mods communicate with each other. But hopefully, I could get an answer to whom which I should consult this problem with. Anyhow, I've been playing minecraft with technic pack on it. Tried to install MCA (Minecraft Comes Alive) Mod. Reloading the world crashes after getting engaged with an NPC. What I had to do was I had to re-install .minecraft, added just the necessary stuff for testing. (Modloader, ModloaderMP, Forge, NEI, and MCA). After reloading the world, it crashes. 5 mods loaded Optifine OptiFine_1.2.5_HD_S_C2 Minecraft Forge 220.127.116.11 FML v18.104.22.168 Forge Mod Loader version 22.214.171.124 for Minecraft 1.2.5 mod_CodeChickenCore : Available (minecraft.jar) mod_MinecraftForge : Available (minecraft.jar) mod_ModLoaderMp : Available (minecraft.jar) mod_NotEnoughItems : Available (minecraft.jar) mod_MCA : Available (mod_MCA.zip) Minecraft has crashed! ---------------------- Minecraft has stopped running because it encountered a problem. --- BEGIN ERROR REPORT 1702f113 -------- Generated 6/17/12 7:38 AM Minecraft: Minecraft 1.2.5 OS: Windows 7 (x86) version 6.1 Java: 1.7.0_05, Oracle Corporation VM: Java HotSpot Client VM (mixed mode), Oracle Corporation LWJGL: 2.4.2 OpenGL: GeForce GTS 250/PCIe/SSE2 version 3.3.0, NVIDIA Corporation java.lang.NullPointerException at MCA_Entity.J_(MCA_Entity.java:189) at MCA_EntityChild.J_(MCA_EntityChild.java:167) at MCA_EntityKid.J_(MCA_EntityKid.java:80) at .a(World.java:2194) at .f(World.java:2165) at .n(World.java:2047) at net.minecraft.client.Minecraft.k(Minecraft.java:1867) at net.minecraft.client.Minecraft.x(Minecraft.java:822) at net.minecraft.client.Minecraft.run(Minecraft.java:750) at java.lang.Thread.run(Unknown Source) --- END ERROR REPORT af7a3f85 ---------- Then, I had to remove the forge and just simply load Modloader alone, it works just fine when reloading the world. So yeah, any Ideas on what I can do? I have already posted this report to MCA's thread as well, I'd just like to get some answers about this concern since I'd really like to play the mod along with Technic Pack (I could go and play it just fine, but when it comes to getting engaged and reloading the world, the problem starts occuring). Thanks.