# Couldn't find file for package /Script/Engine requested by async loading code **URL:** \ **Category:** Programming & Scripting\ **Tags:** unreal-engine\ **Created:** [July 28, 2017, 8:13pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822 "2017-07-28T20:13:32Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [July 28, 2017, 8:13pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/1 "2017-07-28T20:13:32Z")
when I launch my dedicated server ``` [2017.07.28-16.38.50:464][0]LogAndroidPermission: UAndroidPermissionCallbackProxy::GetInstance [2017.07.28-16.38.50:478][0]LogEngine: Initializing Engine... [2017.07.28-16.38.50:478][0]LogStreaming:Error: Couldn't find file for package /Script/Engine requested by async loading code. NameToLoad: /Script/Engine ``` (but the server seems to be working correctly.) Is there any solution to do with it? ---
**Author:** ![anonymous\_user\_a90dc833](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a90dc833](https://forums.unrealengine.com/u/anonymous_user_a90dc833)\ **Post date:** [August 2, 2017, 8:10pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/2 "2017-08-02T20:10:57Z")
Same here would love for a solution. šŸ˜• ---
**Author:** ![anonymous\_user\_a90dc833](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a90dc833](https://forums.unrealengine.com/u/anonymous_user_a90dc833)\ **Post date:** [August 3, 2017, 8:12pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/3 "2017-08-03T20:12:23Z")
Have you found a solution? ---
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [August 3, 2017, 11:29pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/4 "2017-08-03T23:29:37Z")
怐1怑I have recognized that itā€™s too complex to use ue4 to generate a dedicated server. So I choose to program a dedicated server written in C++ by myself. The communication between server and client is essentially socket communication. So itā€™s not difficult for me. If you want to make things simpler, you can use KBEngine. Itā€™s a open source server engine and it supports ue4. 怐2怑If you really still want to use ue4 to generate a dedicated server. I think maybe you can wait for 4.17 for further versions. Iā€™m sorry I really donā€™t know how to solve it. ---
**Author:** ![anonymous\_user\_49a519741](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_49a519741](https://forums.unrealengine.com/u/anonymous_user_49a519741)\ **Post date:** [August 4, 2017, 1:41am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/5 "2017-08-04T01:41:17Z")
Bump. This happens for me on dedicated server (with a custom plugin). It doesnā€™t seem to be a big deal, but the red text in my log display is very upsetting. Maybe it has something to do with the new IWYU system? Like maybe instead of including ā€œEngineā€ in the Build.cs dependency list, weā€™re supposed to be more specific. ---
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [August 4, 2017, 1:58am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/6 "2017-08-04T01:58:26Z")
Yes, it doesnā€™t seem to be a big problem but Iā€™m not sure. ā€œ/Script/Engineā€ looks like a path in .pak file(Iā€™m really new to ue4). I donā€™t know whether it will cause crash or something else. Maybe you are right, but I am not able to test excluding ā€œEngineā€ in Build.cs. ---
**Author:** ![Adrien\_Grig](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Adrien\_Grig](https://forums.unrealengine.com/u/Adrien_Grig)\ **Post date:** [August 4, 2017, 10:54pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/7 "2017-08-04T22:54:40Z")
Hi, I have the same problem here, but Iā€™m not trying to launch a dedicated server. Iā€™m not even writing in C++ā€¦ Everything works fine when I hit play but get this error when launching or packagingā€¦ ---
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [August 4, 2017, 11:58pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/8 "2017-08-04T23:58:21Z")
Maybe all of us choose the ā€œinclusiveā€ in Blueprint Nativization Method or check the ā€œEncryptā€¦ā€ in Packaging? ---
**Author:** ![Ripix](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ripix/32/1098282_2.png) [@Ripix](https://forums.unrealengine.com/u/Ripix)\ **Post date:** [August 15, 2017, 1:49am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/9 "2017-08-15T01:49:35Z")
in the same boat here. changing the nativization settings did not help. Havenā€™t tried ā€œencryptā€, donā€™t see that would help. cloned to a new project, no help. going to try 4.17, see what happens. ---
**Author:** ![anonymous\_user\_49a519741](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_49a519741](https://forums.unrealengine.com/u/anonymous_user_49a519741)\ **Post date:** [August 15, 2017, 1:58am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/10 "2017-08-15T01:58:38Z")
Iā€™m just building my project with 4.17 now. If anyone hasnā€™t up-voted the question, make sure you do. It can only help. ---
**Author:** ![anonymous\_user\_49a519741](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_49a519741](https://forums.unrealengine.com/u/anonymous_user_49a519741)\ **Post date:** [August 15, 2017, 3:49am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/11 "2017-08-15T03:49:25Z")
I donā€™t see the error anymore. Hope the rest of 4.17 is OK. It didnā€™t seem like they took long enough before releasing it so Iā€™m a bit worried. ---
**Author:** ![Adrien\_Grig](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Adrien\_Grig](https://forums.unrealengine.com/u/Adrien_Grig)\ **Post date:** [August 15, 2017, 9:03am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/12 "2017-08-15T09:03:56Z")
Yeah mine got fixed as well when I went back to a previous version of the level and redid the changes. Probably had something to do with volumetric fog or some LOD settings I guess ---
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [August 15, 2017, 9:18am UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/13 "2017-08-15T09:18:38Z")
Soā€¦maybe we can draw a conclusion that it just a BUG and it only exists in 4.16? ---
**Author:** ![Ripix](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ripix/32/1098282_2.png) [@Ripix](https://forums.unrealengine.com/u/Ripix)\ **Post date:** [August 15, 2017, 2:45pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/14 "2017-08-15T14:45:08Z")
_ **4.17 did not fix** _ this here. Currently back in 4.16.3. This is the only thing holding back the game, itā€™s done otherwise - just canā€™t get it to work outside the editor. Tried turning off async, Blueprints Inclusive, Exlusive, Disabled. ā€œLogPlayLevel: UE4Game: [2017.08.15-21.36.07:367][0]LogStreaming:Error: Couldnā€™t find file for package /Script/Engine requested by async loading code. NameToLoad: /Script/Engineā€ ---
**Author:** ![anonymous\_user\_49a519741](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_49a519741](https://forums.unrealengine.com/u/anonymous_user_49a519741)\ **Post date:** [August 15, 2017, 5:43pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/15 "2017-08-15T17:43:54Z")
Oh wow. For all of us, I think, it was just annoying. Itā€™s actually failing for you? It could be that the this async error is a red herring and your issue is something different. Either that orā€¦ Did you do all of the IWYU changes properly? I still think this was an artifact of that transition. Maybe you should post a separate question and give us a link to it. ---
**Author:** ![Ripix](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ripix/32/1098282_2.png) [@Ripix](https://forums.unrealengine.com/u/Ripix)\ **Post date:** [August 15, 2017, 8:16pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/16 "2017-08-15T20:16:42Z")
Okay, moved my issue to a new thread: > **[WARNING: Win64 does not implement Deploy...](https://forums.unrealengine.com/questions/679227/warning-win64-does-not-implement-deploy.html)** > > Hi guys, have a completed game here thatā€™s being shy. Runs like a charm in Editor, seems to make it through most of the packaging, then at the end, deployment stops at " WARNING: Win64 does not implement Deployā€¦" Then it get to: ā€œLogStreaming:Error:... ---
**Author:** ![anonymous\_user\_e1a50695](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e1a50695](https://forums.unrealengine.com/u/anonymous_user_e1a50695)\ **Post date:** [September 5, 2017, 1:12pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/17 "2017-09-05T13:12:15Z")
I have the same problem here with packaging, any solution? ---
**Author:** ![anonymous\_user\_2b7498ec](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2b7498ec](https://forums.unrealengine.com/u/anonymous_user_2b7498ec)\ **Post date:** [September 5, 2017, 1:19pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/18 "2017-09-05T13:19:20Z")
No, I havenā€™t got solution. This problem needs up-votesā€¦ ---
**Author:** ![anonymous\_user\_e1a50695](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e1a50695](https://forums.unrealengine.com/u/anonymous_user_e1a50695)\ **Post date:** [September 6, 2017, 3:52pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/19 "2017-09-06T15:52:52Z")
I updated to 4.17 and it worksā€¦no clue of whatā€™s the origin of this problem ---
**Author:** ![anonymous\_user\_1d70478c](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_1d70478c](https://forums.unrealengine.com/u/anonymous_user_1d70478c)\ **Post date:** [October 3, 2017, 9:46pm UTC](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822/20 "2017-10-03T21:46:23Z")
I think I figured this out. I added to my DefaultEngine.ini: ``` [Core.Log] LogStreaming = Verbose LogConfig=Verbose LogProperty=Verbose ``` Then, right before I get that message, I see that I am trying to load a property from a config file that points to a class that doesnā€™t exist. I fixed that, and the problem went away. It seemed that the non-existent class put the config loader into an invalid state, which caused the SUBSEQUENT CDO loaded to be filled out with an invalid property, which obviously can cause all sorts of crashes. UDN if you have access: [https://udn.unrealengine.com/questions/394907/non-existent-class-in-config-causes-subsequent-cdo.html](https://udn.unrealengine.com/questions/394907/non-existent-class-in-config-causes-subsequent-cdo.html) [Next page](https://forums.unrealengine.com/t/couldnt-find-file-for-package-script-engine-requested-by-async-loading-code/400822.md?page=2)