import fbx anim using python not work

Development Programming & Scripting
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1

I’m creating an fbx anim import tool in unreal editor using python script and editor utility widget.
My python script only works after I have manually imported some fbx anim.If I call it right after I launch the editor it will throw errors below(not really much info)

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image1544×156 28.5 KB

here is my python script

import os.path
import unreal
import sys

fbx_dir = sys.argv[1]
target_skeleton = sys.argv[2]
print(fbx_dir)
print(target_skeleton)

# Option
taskoptions = unreal.FbxImportUI()

taskoptions.set_editor_property('Skeleton', unreal.find_asset(target_skeleton))
taskoptions.set_editor_property('import_materials', False)
taskoptions.set_editor_property('import_textures', False)
taskoptions.set_editor_property('import_animations', True)
taskoptions.set_editor_property('import_mesh', False)
taskoptions.set_editor_property('create_physics_asset',False)
taskoptions.set_editor_property('original_import_type', unreal.FBXImportType.FBXIT_ANIMATION)
taskoptions.set_editor_property('automated_import_should_detect_type', False)
taskoptions.set_editor_property('mesh_type_to_import', unreal.FBXImportType.FBXIT_ANIMATION)

# Task
tasks = []
for root, dirs, files in os.walk(fbx_dir):
    for file in files:
        print(file)
        target_file = file.replace('.fbx', '')
        
        task = unreal.AssetImportTask()
        task.filename = os.path.join(root, file)
        task.destination_path = "/Game/Anim/"
        task.automated = True
        task.save = True
        task.replace_existing = True
        task.set_editor_property('options', taskoptions)
        tasks.append(task)

unreal.AssetToolsHelpers.get_asset_tools().import_asset_tasks(tasks)