I’m having the same issue, did you ever figure it out?
Anybody can say how compile import/export .so file from assimp 5.0 or anybody can send link where i can download .so ?
Just chiming in to say THANK YOU for this guide. People like you make the dev world go 'round. 
Hi, I followed the guide but I ran into some issues.
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I got an error that Assimp/Config.h wasn’t found. It seems like the Include in the Source folder and the include in the generated folder differ; I found the file in the generated folder.
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There seem to be Syntax errors in the code acquired from the OP; did Unreal change its dereferencing syntax at some point? Because code like:
processNode(node->mChildren*, scene);
Gives an error, I assume its meant to be:
processNode(*node->mChildren, scene);
?
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VS also complained that it expected #include “AssimpInterface.h” to be the first include.
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There’s a sequence of code here which seemed to be referencing the i-th element but wasn’t?
for (unsigned int i = 0; i < mesh->mNumVertices; i++)
{
FVector vertex, normal;
// process vertex positions, normals and UVs
vertex.X = mesh->mVertices*.x;
vertex.Y = mesh->mVertices*.y;
vertex.Z = mesh->mVertices*.z;
normal.X = mesh->mNormals*.x;
normal.Y = mesh->mNormals*.y;
normal.Z = mesh->mNormals*.z;
// if the mesh contains tex coords
if (mesh->mTextureCoords[0])
{
FVector2D uvs;
uvs.X = mesh->mTextureCoords[0]*.x;
uvs.Y = mesh->mTextureCoords[0]*.y;
_uvs[_meshCurrentlyProcessed].Add(uvs);
}
else
{
_uvs[_meshCurrentlyProcessed].Add(FVector2D(0.f, 0.f));
}
_vertices[_meshCurrentlyProcessed].Add(vertex);
_normals[_meshCurrentlyProcessed].Add(normal);
}
Which is a little strange, I don’t think C++ has this concept for iterating through arrays?
This is a very good tutorial on how to build assimp. To add on how to use the library, a plugin with the very simple use case to load only one mesh and package it as a Unreal plugin for 5.3 an be found here on Github: Assimp2UnrealExample