# Setting up labjack **URL:** \ **Category:** Support\ **Created:** [September 20, 2022, 4:10pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829 "2022-09-20T16:10:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![hansem](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@hansem](https://mworks.discourse.group/u/hansem)\ **Post date:** [September 20, 2022, 4:10pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/1 "2022-09-20T16:10:01Z")
Hi Chris, I’m setting up labjack as an alternative to NIDAQ and got the following error when loading the experiment (after upgrading mworks into Version 0.12.dev (2022.09.20)): **00:02:38** : ERROR: Failed to create object. Extended information: reason: No factory for object type: iodevice/labjack\_ljm location: labjack.mwel: line 1, column 1 object\_type: iodevice/labjack\_ljm ref\_id: idm35182208572048 component: labjack parser\_context: mw\_create I see LabJackLJM.bundle in /Library/Application Support/MWorks/Plugins/Core. I’m using model T7 and installed the LabJack LJM library. T7 is working fine as I did the labjack’s quick start tutorial. Is there any other procedure I need to complete? Here’s piece of code I’m using: iodevice/labjack\_ljm labjack ( update\_interval = 1ms // 3ms device\_type = T7 connection\_type = USB // ETHERNET // identifier = LJM\_idANY // 192.168.1.207 // example autostart = true // NO ) { iochannel/labjack\_ljm\_digital\_output( line = FIO0 // example value = reward\_line ) iochannel/labjack\_ljm\_digital\_output( // target on line = FIO2 value = labjack\_target\_on ) iochannel/labjack\_ljm\_digital\_output( // cue on line = FIO3 value = labjack\_cue\_on ) } start\_io\_device (labjack) Thanks, Hansem ---
**Author:** ![cstawarz](https://yyz1.discourse-cdn.com/flex031/user_avatar/mworks.discourse.group/cstawarz/32/3_2.png) [@cstawarz](https://mworks.discourse.group/u/cstawarz)\ **Post date:** [September 20, 2022, 7:07pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/2 "2022-09-20T19:07:18Z")
Hi Hansem, Are you running MWorks on an Apple Silicon (M1/M2) Mac? If so, you need to configure MWServer to run as an Intel process via [Rosetta 2](https://support.apple.com/en-us/HT211861), as the [LabJack LJM library](https://labjack.com/support/software/installers/ljm) is currently available only for the Intel architecture. If you’re _not_ using an Apple Silicon Mac, please let me know, and we’ll investigate other possible causes of this problem. Cheers, Chris ---
**Author:** ![hansem](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@hansem](https://mworks.discourse.group/u/hansem)\ **Post date:** [September 20, 2022, 7:31pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/3 "2022-09-20T19:31:14Z")
Thanks for your quick reply, Chris! I’m not using Apple Silicon (M1/M2) mac. Let me know if you have any other idea. Thanks, Hansem ---
**Author:** ![cstawarz](https://yyz1.discourse-cdn.com/flex031/user_avatar/mworks.discourse.group/cstawarz/32/3_2.png) [@cstawarz](https://mworks.discourse.group/u/cstawarz)\ **Post date:** [September 21, 2022, 1:53pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/4 "2022-09-21T13:53:13Z")
Hi Hansem, OK, let’s first check if the LabJack LJM plugin is being loaded and if not, why. To do this, first quit MWServer if it’s running. Then, open the Terminal application, and execute the following command: ``` MWORKS_WRITE_MESSAGES_TO_STDERR=1 /Applications/MWServer.app/Contents/MacOS/MWServer ``` This should produce a bunch of messages about plugins being loaded. For example, on my M1 iMac, here’s what I see: ```auto Loading WhiteNoiseBackground Loading TouchInput Loading ZenSchedulerPlugin Loading Eyelink WARNING: Plugin module (Eyelink) failed to load: dlopen(/Library/Application Support/MWorks/Plugins/Core/Eyelink.bundle/Contents/MacOS/Eyelink, 0x0001): tried: '/Library/Application Support/MWorks/Plugins/Core/Eyelink.bundle/Contents/MacOS/Eyelink' (mach-o file, but is an incompatible architecture (have (x86_64), need (arm64e))) Loading FaceRecognizer Loading ZenStateSystemPlugin Loading ParametricShape Loading ISCAN Loading Firmata Loading DATAPixx WARNING: Plugin module (DATAPixx) failed to load: dlopen(/Library/Application Support/MWorks/Plugins/Core/DATAPixx.bundle/Contents/MacOS/DATAPixx, 0x0001): tried: '/Library/Application Support/MWorks/Plugins/Core/DATAPixx.bundle/Contents/MacOS/DATAPixx' (mach-o file, but is an incompatible architecture (have (x86_64), need (arm64e))) Loading BlackrockLEDDriver Loading LabJackLJM WARNING: Plugin module (LabJackLJM) failed to load: dlopen(/Library/Application Support/MWorks/Plugins/Core/LabJackLJM.bundle/Contents/MacOS/LabJackLJM, 0x0001): tried: '/Library/Application Support/MWorks/Plugins/Core/LabJackLJM.bundle/Contents/MacOS/LabJackLJM' (mach-o file, but is an incompatible architecture (have (x86_64), need (arm64e))) Loading HighPrecisionClock Loading XIMEACamera Loading FakeMonkeyPlugin Loading TextStimulus Loading PythonPlugin Loading OpenEphys Loading NE500Plugin Loading LayerStimulus Loading DriftingGratingStimulusPlugin Loading ServersideConduit Loading RCBLVDS Loading MovieStimulusPlugin Loading MouseInput Loading QCUALOR Loading EasyEye Loading LowPrioritySchedulerPlugin Loading VideoStimulus Loading MovingDots Loading USBHID Loading RenderActions Creating realtime components: clock: MachClock scheduler: ZenScheduler state_system: ZenStateSystem ``` Please copy the messages you see on your system and send them to me. Thanks, Chris ---
**Author:** ![hansem](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@hansem](https://mworks.discourse.group/u/hansem)\ **Post date:** [September 21, 2022, 3:02pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/5 "2022-09-21T15:02:10Z")
Great, the message (see below) already gives me the reason! I’ve installed the releases version of LJM library (2019/2/14) which uses LJM Library - Version: 1.20. But I need 1.21 so I installed beta version and now it’s working. Thanks for your help! Hansem ====== Loading WhiteNoiseBackground Loading TouchInput Loading ZenSchedulerPlugin Loading Eyelink Loading FaceRecognizer Loading ZenStateSystemPlugin Loading ParametricShape Loading ISCAN Loading Firmata Loading DATAPixx Loading BlackrockLEDDriver Loading LabJackLJM WARNING: Plugin module (LabJackLJM) failed to load: dlopen(/Library/Application Support/MWorks/Plugins/Core/LabJackLJM.bundle/Contents/MacOS/LabJackLJM, 1): Library not loaded: /usr/local/lib/libLabJackM.dylib Referenced from: /Library/Application Support/MWorks/Plugins/Core/LabJackLJM.bundle/Contents/MacOS/LabJackLJM Reason: Incompatible library version: LabJackLJM requires version 1.21.0 or later, but libLabJackM.dylib provides version 1.20.0 Loading HighPrecisionClock Loading XIMEACamera WARNING: Plugin module (XIMEACamera) failed to load: dlopen(/Library/Application Support/MWorks/Plugins/Core/XIMEACamera.bundle/Contents/MacOS/XIMEACamera, 1): Library not loaded: /Library/Frameworks/m3api.framework/Versions/B/m3api Referenced from: /Library/Application Support/MWorks/Plugins/Core/XIMEACamera.bundle/Contents/MacOS/XIMEACamera Reason: image not found Loading FakeMonkeyPlugin Loading TextStimulus Loading PythonPlugin Loading OpenEphys Loading NE500Plugin Loading LayerStimulus Loading DriftingGratingStimulusPlugin Loading ServersideConduit Loading RCBLVDS Loading MovieStimulusPlugin Loading MouseInput Loading QCUALOR Loading EasyEye Loading LowPrioritySchedulerPlugin Loading VideoStimulus Loading MovingDots Loading USBHID Loading RenderActions Creating realtime components: clock: HighPrecisionClock scheduler: ZenScheduler state\_system: ZenStateSystem ---
**Author:** ![cstawarz](https://yyz1.discourse-cdn.com/flex031/user_avatar/mworks.discourse.group/cstawarz/32/3_2.png) [@cstawarz](https://mworks.discourse.group/u/cstawarz)\ **Post date:** [September 22, 2022, 2:28pm UTC](https://mworks.discourse.group/t/setting-up-labjack/829/6 "2022-09-22T14:28:57Z")