[SOLVED] Bone Heat Weighting failed (Automatic Weights doesn't work in Blender) Bangla

In this video, you will learn what to do when Automatic Weights doesn't work. In other words, how to solve the error "Bone Heat Weighting: failed to find a solution for one or more bones". This is an extremely common problem when trying to bind/skin a complex mesh to an armature. The complexity of the armature is not that important but a complex character with many overlapping props etc. is very likely to cause this problem. In this video, I will show the most common techniques for solving the issue. I will also try to help you understand how and why it happens.