# RunTimeFrame start-up failed! **URL:** \ **Category:** B&R Software & Runtime\ **Tags:** automation-studio\ **Created:** [January 15, 2026, 11:23am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722 "2026-01-15T11:23:00Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 11:23am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/1 "2026-01-15T11:23:00Z")
During compiling of an (older) project, I get every time the error “runtimeframe start-up failed” For this project I’m using AS4.5 with AR J4.25. (another AR version gives the same error) How to solve this problem? ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 15, 2026, 11:39am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/2 "2026-01-15T11:39:04Z")
I have never heard of such an error. Could you attach a screenshot of the error message ? ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 11:42am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/3 "2026-01-15T11:42:30Z")
![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/8/882b19fb06a325a984e159c9fd16aa35ba69641b.png) ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 11:54am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/4 "2026-01-15T11:54:06Z")
when I restored a backup from this project i can compile it without errors, but as soon as I want to start the simulation I get this error, I will check that missing file, but strange if it is not there ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/c/cb22549c26b5448a424e89d8fe7feea0e4cf8d40.png) ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 15, 2026, 11:55am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/5 "2026-01-15T11:55:09Z")
Sounds like J4.25 is not installed for ARSim ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 11:57am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/6 "2026-01-15T11:57:34Z")
![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/6b2ce4e0957e35bf0a27391a2d27805d8520e293.png) should that not be done automatically? ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 12:15pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/7 "2026-01-15T12:15:17Z")
![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/9/934a80ca838fdd6addd28e6f43761b826bdfc1d0.png) strange, I cannot send to the simulation, but the simulation is already running in J4.25 ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 15, 2026, 12:28pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/8 "2026-01-15T12:28:30Z")
Basically every AS installation comes with certain AR versions. “Automatically” no other AR will be installed and this needs to be done by the user In your case the AR seems to exist but it also seems that some files are missing - similar as some files were not correctly installed or available ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 12:30pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/9 "2026-01-15T12:30:51Z")
probably it has to do that J4.25 is developed for AS4.2 ? Think have to update it to 4.53 and see if it is solved ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 15, 2026, 12:36pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/10 "2026-01-15T12:36:05Z")
J4.25 is not part of AS4.5 but it still should work Nevertheless both versions are outdated since years ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 15, 2026, 12:50pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/11 "2026-01-15T12:50:45Z")
Solved: I run the upgrade and it installs the missing file ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/8/8d6456bc9a2e474fcbaabc67e698195f2df45855.png) ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 15, 2026, 1:28pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/12 "2026-01-15T13:28:22Z")
Great to hear ! Thanks for the feedback ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 19, 2026, 1:16pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/13 "2026-01-19T13:16:21Z")
Unfortunately, the problem has still not been resolved. The previous issue actually consisted of two problems (the simulation also did not work, but that has been resolved). But I discover other problems, and I think they are related to each other. In a project in AS4.6 I get with compiling the error: “RuntimeFrame start-up failed! ![image](https://europe1.discourse-cdn.com/brcommunity/optimized/2X/1/1435b213095043871432736daa990a79143de0f1_2_690x47.png) In AS4.2, when I go to tools \> Update DTM Catalog I get: ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/c/ce6ab0b5d7ece2fc623ab3c5e944963a8107b9dc.png) in AS 4.5, AS4.6 and AS4.7 Tools\> 3rd-Party device manager: ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/1/10670b9e11aa82d1bea15a11c13e5453eb39fe04.png) In AS 4.12 there are no problems, the device manager is working there ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/1/17cd414e1be0afab6010a3e46a3b865b3caca66a.jpeg) Anny Idea what can be the problem ?? ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 19, 2026, 1:27pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/14 "2026-01-19T13:27:38Z")
Is this Windows 11 ? If yes then it might be the problem as this is not supported. Such old AS versions only run on Win10 ---
**Author:** ![Harry\_Schutte](https://avatars.discourse-cdn.com/v4/letter/h/FF8800/32.png) [@Harry\_Schutte](https://community.br-automation.com/u/Harry_Schutte)\ **Post date:** [January 19, 2026, 1:31pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/15 "2026-01-19T13:31:21Z")
It’s windows 11, but it has always worked before ---
**Author:** ![oliver\_D](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/oliver_d/32/257_2.png) [@oliver\_D](https://community.br-automation.com/u/oliver_D)\ **Post date:** [January 19, 2026, 1:45pm UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/16 "2026-01-19T13:45:47Z")
Well it might have worked but I have to tell you that Win11 is no valid OS for the mentioned versions: ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/6cb645d4c768a62b8aa3ff94a68132fa82962f83.png) Probably Win11 did some update which affects now this old versions. As AS4.12 works this is also a strong indication that it is caused by Win11 and its built in .Net ---
**Author:** ![Chennet](https://avatars.discourse-cdn.com/v4/letter/c/FF8800/32.png) [@Chennet](https://community.br-automation.com/u/Chennet)\ **Post date:** [April 8, 2026, 2:30am UTC](https://community.br-automation.com/t/runtimeframe-start-up-failed/9722/17 "2026-04-08T02:30:24Z")
FYI, I had exactly same issue today. Then I check the DTM log file，found out that it was a XML parser error. After reinstall MSXML4，problem solved. > **[Microsoft Update Catalog](https://www.catalog.update.microsoft.com/Search.aspx?q=973688)**