topic RuntimeError: 2 : InternalValidationError : results in Fusion API and Scripts Forum

RuntimeError: 2 : InternalValidationError : results

NuofanQiu — Tue, 16 May 2023 15:33:14 GMT

I currently write an add-in to import models into design but I can only import one model at a time.

Import only one manipulator or one gripper works. But import manipulator and gripper at the same time, something went wrong:

Traceback (most recent call last): File "C:\Users/Aspartame/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/AddIns/ImportRobot\lib\fusion360utils\event_utils.py", line 84, in notify callback(args) File "C:\Users/Aspartame/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/AddIns/ImportRobot\commands\importRobot\entry.py", line 138, in command_execute import_robot.importManipulator(gripper.name) File "C:\Users/Aspartame/AppData/Roaming/Autodesk/Autodesk Fusion 360/API/AddIns/ImportRobot\commands\importRobot\import_robot.py", line 40, in importManipulator importManager.importToTarget(f3dOptions, rootComp) File "C:\Users/Aspartame/AppData/Local/Autodesk/webdeploy/production/b4885f4229f39fee5ad2bce82f309e671e5c9ccd/Api/Python/packages\adsk\core.py", line 10892, in importToTarget return _core.ImportManager_importToTarget(self, importOptions, target) RuntimeError: 2 : InternalValidationError : results

But I test it using a script works well, here is the `test.py`:

import adsk, adsk.core, adsk.fusion import os, sys import pathlib import time def importManipulator(name: str): """ name: name of manipulator """ app = adsk.core.Application.get() ui = app.userInterface product = app.activeProduct design = adsk.fusion.Design.cast(product) rootComp = design.rootComponent importManager = app.importManager viewPort = app.activeViewport currentCamera = viewPort.camera # change the view to make z-axis with a up direction camera_up_vector = adsk.core.Vector3D.create(0.0, 0.0, 1.0) currentCamera.upVector = camera_up_vector viewPort.camera = currentCamera _ = viewPort.refresh() current_dir = os.path.dirname(os.path.abspath(__file__)) if name == "None": return # do nothing if name == "UR5e": model_file = current_dir + "/robot_models/UR5e.f3d" f3dOptions = importManager.createFusionArchiveImportOptions(model_file) f3dOptions.isViewFit = True importManager.importToTarget(f3dOptions, rootComp) if name == "Robotiq85 Gripper": model_file = current_dir + "/robot_models/Robotiq_2F85_Gripper.f3d" f3dOptions = importManager.createFusionArchiveImportOptions(model_file) f3dOptions.isViewFit = True importManager.importToTarget(f3dOptions, rootComp) importManipulator("UR5e") importManipulator("Robotiq85 Gripper")

But I don't know what is wrong with the add-in code. I iput it at GoogleDrive hoping you can help with me. By now, I only have two `f3d` file so you can just pick `UR5e` model and `Robotiq85 Gripper` as the selection.

My add-in file at GoogleDrive:

Add-in at GoogleDrive

Thanks a lot!

Re: RuntimeError: 2 : InternalValidationError : results

kandennti — Wed, 17 May 2023 03:31:06 GMT

Hi @NuofanQiu .

I made a script and tried it. The f3d files used are the same.
This one simply imports two f3d files.

# Fusion360API Python script import traceback import adsk.core as core import adsk.fusion as fusion import pathlib THIS_DIR = pathlib.Path(__file__).resolve().parent def run(context): ui: core.UserInterface = None try: app: core.Application = core.Application.get() ui = app.userInterface paths = [ str(THIS_DIR / 'robot_models' / 'Robotiq_2F85_Gripper.f3d'), str(THIS_DIR / 'robot_models' / 'UR5e.f3d'), ] import_f3ds(paths) except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc())) def import_f3ds(paths: list[str]) -> None: app: core.Application = core.Application.get() try: des: fusion.Design = app.activeProduct root: fusion.Component = des.rootComponent importMgr: core.ImportManager = app.importManager for path in paths: importOpt: core.FusionArchiveImportOptions = importMgr.createFusionArchiveImportOptions( path, ) importMgr.importToTarget(importOpt , root) except: app.log('Failed:\n{}'.format(traceback.format_exc()))

This one was handled correctly.

The next script uses a dialog.
It is longer, but the import process itself is the same.

# Fusion360API Python script import traceback import adsk import adsk.core as core import adsk.fusion as fusion import pathlib THIS_DIR = pathlib.Path(__file__).resolve().parent _app: core.Application = None _ui: core.UserInterface = None _handlers = [] CMD_INFO = { 'id': 'kantoku_test', 'name': 'test', 'tooltip': 'test' } class MyCommandCreatedHandler(core.CommandCreatedEventHandler): def __init__(self): super().__init__() def notify(self, args: core.CommandCreatedEventArgs): core.Application.get().log(args.firingEvent.name) try: global _handlers cmd: core.Command = core.Command.cast(args.command) inputs: core.CommandInputs = cmd.commandInputs onDestroy = MyCommandDestroyHandler() cmd.destroy.add(onDestroy) _handlers.append(onDestroy) onExecute = MyExecuteHandler() cmd.execute.add(onExecute) _handlers.append(onExecute) txtIpt: core.TextBoxCommandInput = inputs.addTextBoxCommandInput( 'txtIpt', 'test', 'Click OK', 1, True ) except: _ui.messageBox('Failed:\n{}'.format(traceback.format_exc())) class MyExecuteHandler(core.CommandEventHandler): def __init__(self): super().__init__() def notify(self, args: core.CommandEventArgs): paths = [ str(THIS_DIR / 'robot_models' / 'Robotiq_2F85_Gripper.f3d'), str(THIS_DIR / 'robot_models' / 'UR5e.f3d'), ] import_f3ds(paths) class MyCommandDestroyHandler(core.CommandEventHandler): def __init__(self): super().__init__() def notify(self, args: core.CommandEventArgs): adsk.terminate() def run(context): try: global _app, _ui _app = core.Application.get() _ui = _app.userInterface cmdDef: core.CommandDefinition = _ui.commandDefinitions.itemById( CMD_INFO['id'] ) if not cmdDef: cmdDef = _ui.commandDefinitions.addButtonDefinition( CMD_INFO['id'], CMD_INFO['name'], CMD_INFO['tooltip'] ) global _handlers onCommandCreated = MyCommandCreatedHandler() cmdDef.commandCreated.add(onCommandCreated) _handlers.append(onCommandCreated) cmdDef.execute() adsk.autoTerminate(False) except: if _ui: _ui.messageBox('Failed:\n{}'.format(traceback.format_exc())) def import_f3ds(paths: list[str]) -> None: app: core.Application = core.Application.get() try: des: fusion.Design = app.activeProduct root: fusion.Component = des.rootComponent importMgr: core.ImportManager = app.importManager for path in paths: importOpt: core.FusionArchiveImportOptions = importMgr.createFusionArchiveImportOptions( path, ) importMgr.importToTarget(importOpt , root) except: app.log('Failed:\n{}'.format(traceback.format_exc()))

This one can reproduce the situation because it is not possible to import.

The main difference is the use of CommandDefinition.
The first f3d is imported, but the second one fails and the imported one disappears.
Perhaps the transaction is causing the process to revert.

There was a crash bug with the importToTarget method in the past.

https://forums.autodesk.com/t5/fusion-360-api-and-scripts/addin-cause-the-crash-shutdown-of-fusion-after-last-update-18-1/m-p/10890738

It was fixed in a relatively short time, but I think it is probably incomplete.
Also, using the importToTarget2 method causes the same problem.
I feel it is a bug.

Re: RuntimeError: 2 : InternalValidationError : results

NuofanQiu — Wed, 17 May 2023 04:39:41 GMT

Yes, I have the same result as you mentioned:"The first f3d is imported, but the second one fails and the imported one disappears.".

Thank you for you reply. I will try to avoid it.

Re: RuntimeError: 2 : InternalValidationError : results

espablo — Mon, 07 Oct 2024 00:44:37 GMT

I just had the same problem. I see it hasn't been fixed yet because I'm also trying to load the f3d file for the second time and I can't because I get this error: "RuntimeError: 2 : InternalValidationError : pBase"

Re: RuntimeError: 2 : InternalValidationError : results

BrianEkins — Mon, 07 Oct 2024 01:36:08 GMT

I recently learned about an undocumented limitation when opening and importing files. Internally, the API calls a command to do this, which causes problems when you're running within a command, which you are in this case. That's why it works as a script because you're not in a command. I'm not sure how to work around this limitation. I think it might be possible, but it would take some experimenting to see what will work.

Re: RuntimeError: 2 : InternalValidationError : results

espablo — Mon, 17 Mar 2025 15:52:49 GMT

Have you managed to solve this problem?

Re: RuntimeError: 2 : InternalValidationError : results

tjbatche — Wed, 10 Dec 2025 23:01:03 GMT

Just commenting to see if there have been any improvements on this problem. I am currently in a situation where I need to import multiple step files and can't seem to find a simple workaround for this issue.

Re: RuntimeError: 2 : InternalValidationError : results

Jorge_Jaramillo — Thu, 11 Dec 2025 01:14:49 GMT

I believe that this situation can be solved with a custom event or with a second process thread, which emit a message to import each file.

This way the execute event handler from the AddIn runs to collect user input and prepare the messages to be sent to the custom event handler.

Then in the custom event handler (not in parallel with the execute handler) it can import each file or make any operation on its own working space.

I'd made it in the past with some implementations without any problem.

Regards,

Jorge Jaramillo