# Error loading program **URL:** \ **Category:** B&R Software & Runtime\ **Tags:** automation-studio\ **Created:** [April 14, 2026, 6:15am UTC](https://community.br-automation.com/t/error-loading-program/10882 "2026-04-14T06:15:24Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Rbn](https://avatars.discourse-cdn.com/v4/letter/r/FF8800/32.png) [@Rbn](https://community.br-automation.com/u/Rbn)\ **Post date:** [April 14, 2026, 6:15am UTC](https://community.br-automation.com/t/error-loading-program/10882/1 "2026-04-14T06:15:24Z")
Good morning. When I finish compiling the programme and click the ‘Load’ button, I get the error shown in the photo. This is the first time I’ve seen this, and I can’t find any information about this error in the B&R help section or online. The programme is AS version 4.12. I hope someone can help me. Thank you. ![error carga b&r.PNG](https://europe1.discourse-cdn.com/brcommunity/original/2X/1/11a1f33c9cfacd091a45a0f00cc20b2cc6e27825.jpeg) ---
**Author:** ![Samuel](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/samuel/32/155_2.png) [@Samuel](https://community.br-automation.com/u/Samuel)\ **Post date:** [April 14, 2026, 7:54am UTC](https://community.br-automation.com/t/error-loading-program/10882/2 "2026-04-14T07:54:43Z")
Hi Ruben, you compiled the project in Automation Studio, right? What do you mean with the “Load” Button? The Transfer (to Target) Button in Automation Studio? Do you have some messages in the output window of Automation Studio? Did you try to: - Rebuild the project - Clean the temp folder of the project (while it is closed) - Restart Automation Studio - Restart the PLC ---
**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\ **Post date:** [April 14, 2026, 9:08am UTC](https://community.br-automation.com/t/error-loading-program/10882/3 "2026-04-14T09:08:49Z")
Hi @Rbn , I saw the same issue when I did a training last year with a customer: ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/d/dd1ada457fc1e55be09b4a67ae294ca7642d8d46.jpeg) The customer saved AS prj in a folder in Synch with OneDrive. Could be your case? When He moved the prj to C:\Temp no more issue. ================================ It’s not clear Ruben what you mean with “loading program“, in my case the customer got the same error every time He tried to build the prj. Ciao Valerio ---
**Author:** ![Rbn](https://avatars.discourse-cdn.com/v4/letter/r/FF8800/32.png) [@Rbn](https://community.br-automation.com/u/Rbn)\ **Post date:** [April 16, 2026, 11:14am UTC](https://community.br-automation.com/t/error-loading-program/10882/4 "2026-04-16T11:14:12Z")
Hi, it’s sorted now. In my case, it had nothing to do with OneDrive; the problem was a lack of permissions on the server at my workplace. Once I logged in as an admin using AS, it was sorted. Thank you very much for your help ---
**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\ **Post date:** [April 16, 2026, 12:10pm UTC](https://community.br-automation.com/t/error-loading-program/10882/5 "2026-04-16T12:10:16Z")
Thanks for your feedback @Rbn ---
**Author:** ![PatrickS](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/patricks/32/465_2.png) [@PatrickS](https://community.br-automation.com/u/PatrickS)\ **Post date:** [April 16, 2026, 1:55pm UTC](https://community.br-automation.com/t/error-loading-program/10882/6 "2026-04-16T13:55:39Z")
I’m familiar with that message too, though only when using **ArSim**. I work with ArSim a lot, and I’ve seen that message a few times during a (normal) transfer. (I think the message appears when the transfer window opens.) My guess was also that some kind of file lock or something similar was causing it. Restarting ArSim didn’t help back then, I don’t think I ever tried restarting the system (Windows). However, after an offline installation, everything worked again, so I suspect the error was somewhere in the runtime directory (Temp-Folder).