Project Crashing On Startup
My project was working fine until all of a sudden the animations started glitching and ue4 crashed. Now every time I attempt to open the game it crashes... I read through the crash logs and this it what I found:
LogWindows: Failed to load 'aqProf.dll' (GetLastError=126)
LogWindows: File 'aqProf.dll' does not exist
LogWindows: Failed to load 'VSPerf140.dll' (GetLastError=126)
LogWindows: File 'VSPerf140.dll' does not exist
LogWindows: Failed to load 'VtuneApi.dll' (GetLastError=126)
LogWindows: File 'VtuneApi.dll' does not exist
LogWindows: Failed to load 'VtuneApi32e.dll' (GetLastError=126)
LogWindows: File 'VtuneApi32e.dll' does not exist
asked Nov 12 '17 at 04:33 AM in Using UE4
I finally fixed this issue, I just had to delete my saved and intermediate folders.
answered Nov 12 '17 at 08:28 AM
I think I FINALLY found out why it's crashing. I was getting the exact same .dll errors as you all were. It happened over and over again. I ended up having to rollback my project 4 of 5 different times.
Answer: The problem was with my code. For example one time I had a TArray, in which I was trying call a function on an index and it was a nullptr. When I compiled it crashed with those errors. At the time I was unaware of my logic error. I kept deleting the binaries/saved/intermediate files, but the project would still crash when loading with those .dll errors. I ended up fixing the code saving the .cpp files and .h files and it worked. I wasn't 100% sure this was the answer, but the crash happened to me again...
I was calling PostInitProperties on a derived class I created, but I wasn't calling the Super(). Once I fixed my .cpp and .h and then went through the deleting of the saved/intermediate/files. Then started my project it worked.
So I would suggest looking at your code, that's most likely the reason it's crashing.
I'm trying to open Epic Games Launcher and I get a black screen with the following error in the log file Failed to load 'aqProf.dll' (GetLastError=126) LogWindows: File 'aqProf.dll' does not exist LogWindows: Failed to load 'VSPerf140.dll' (GetLastError=126) LogWindows: File 'VSPerf140.dll' does not exist LogWindows: Failed to load 'VtuneApi.dll' (GetLastError=126) LogWindows: File 'VtuneApi.dll' does not exist LogWindows: Failed to load 'VtuneApi32e.dll' (GetLastError=126) LogWindows: File 'VtuneApi32e.dll' does not exist
What do I need to do to rectify please?
answered Jul 15 '18 at 08:44 AM
Hi, I just had this exact problem - my project would just crash every single time I tried to launch it, and I'd get the exact same lines in the crash logs about missing .dll objects and so on.
It happened after my project crashed while working on some cloth physics assets. The only way I could get the project back online was to locate all the physics assets and the mesh assets they were associated with and remove them from the content directories.
If you're having this issue after working with some physics assets - try removing them
Deleting the 'saved' and 'intermediate' folders did nothing.
answered Sep 27 '18 at 08:48 PM
I have the solution: you must go into management devices on your pc and disable your intel video's and only if you have Nvidia on your pc.
perform this procedure only if you have Nvidia in your PC together with another video card intel disable the intel card and this will start Nvidia
I do not take responsibility if you cause damage to your PC
answered Jan 08 '18 at 03:18 PM
I have no idea how to code honestly this all sounded confusing af If you dont mind please tell me how to fix this in code just write out instructions or add me on discord Richcarlos#6271 ty this is much apreciated
answered Mar 21 '18 at 01:52 PM
Hello guys; I don't play games but my architectural render program (OS Windows10) works with Unreal as render engine and I came across the exact same problem. After half a day of trying and cleaning registries and all I thought of an old bushtrick; create another user for Windows on your computer; log into that one and start the software.
Worked for me.
It's not long term solution, but at least I could continue....
Greetings from sunny Amsterdam.
answered Apr 19 '18 at 05:16 PM
Too new to edit my reply to SKING about the root cause being null pointers / references, so:
Here I'm using what I believe is the best practice for inline null checks on my Movement component:
This is discussed in much better detail by the accepted answer here
answered Apr 28 '18 at 03:27 PM
I got a same error and it drove me crazy for two days, I tried several ways to fix it, and it success! for now at least. I am using Dell G7 18GB RAM with GTX 1060 6GB White Sapphire. Got the error from 21 December 2018 fixed 23 December 2018 Here what I done to my Laptop..
Thanks to: 1. Penton 2. zhang2951
Special Note: Do not disable your Intel Graphic inside "Device Manager", your computer display will just get worse or maybe blue screen.
Most recently for me, this problem seemed to be caused by having Auto Reimport enabled on some content directories, which hadn't saved their content properly before a crash.
I think, because the option for 'Detect Changes on Startup' in the Auto Reimport settings was enabled - every time I tried to reload the project the editor got confused, freaked out, and shut down every time.
The only way to get it to stay open was to find the offending content directory in Windows and move all it's contents onto my desktop or somewhere else entirely away from the project folder. Then relaunch the editor. If you've finally got the editor to stay open by doing this, you should then go into the Auto Reimport settings and delete the offending 'Directories to Monitor' array. After that, you can bring the content back into your project from your desktop (or wherever you put it) and save everything properly.
The real issue I think is with the options in Auto Reimport for 'Detect Changes On Startup,' 'Auto Delete Assets,' and 'Auto Create Assets' which are all enabled by default. Now, whenever I use Auto Reimport I disable all these options and I've not had a problem with it since.
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