[2019.1.8f1] "failed to load il2cpp unity" on Windows 7 machines

arturaz · Jun 26, 2019

https://steamcommunity.com/app/1089650/discussions/0/1643167006256338718/

Some of our users are getting "failed to load il2cpp unity". They seem to be on Windows 7, 64bit, machines.

The game worked when built with 2019.1.6f1.

We "fixed" this by building a mono build.

vladk · Jun 27, 2019

Same here, happens on the latest version 2019.1.8f1

Tautvydas-Zilys · Jul 1, 2019

Hey, we will take a look at this ASAP. Can you fill a bug report (just describing the situation and an empty Unity project attached)?

Tautvydas-Zilys · Jul 1, 2019

I found the root cause. I will post a workaround in a little bit. We'll also include the fix in a patch release as soon as possible.

Tautvydas-Zilys · Jul 1, 2019

Here's a workaround. Open "<UNITY_INSTALL_DIR>\Editor\Data\il2cpp\libil2cpp\os\Win32\File.cpp" and apply this diff:

Code (csharp):

diff --git a/libil2cpp/os/Win32/File.cpp b/libil2cpp/os/Win32/File.cpp

index 3d7f48279..1b928f663 100644

--- a/libil2cpp/os/Win32/File.cpp

+++ b/libil2cpp/os/Win32/File.cpp

@@ -503,7 +503,11 @@ namespace os

{

success = TRUE;

// The async write succeeded. Now get the number of bytes written.

+#if IL2CPP_TARGET_WINDOWS_DESKTOP

+ if (GetOverlappedResult((HANDLE)handle, &overlapped, (LPDWORD)&written, TRUE) == 0)

+#else

if (GetOverlappedResultEx((HANDLE)handle, &overlapped, (LPDWORD)&written, INFINITE, FALSE) == 0)

+#endif

{

// Oops, we could not get the number of bytes writen, so return an error.

*error = GetLastError();

arturaz · Jul 2, 2019

Case 1165837

Have not tried the workaround yet.

eagle555 · Jul 2, 2019

Tautvydas-Zilys said: ↑

*
Click to expand...

Tautvydas-Zilys said: ↑

Here's a workaround. Open "<UNITY_INSTALL_DIR>\Editor\Data\il2cpp\libil2cpp\os\Win32\File.cpp" and apply this diff:

Code (csharp):

diff --git a/libil2cpp/os/Win32/File.cpp b/libil2cpp/os/Win32/File.cpp

index 3d7f48279..1b928f663 100644

--- a/libil2cpp/os/Win32/File.cpp

+++ b/libil2cpp/os/Win32/File.cpp

@@ -503,7 +503,11 @@ namespace os

{

success = TRUE;

// The async write succeeded. Now get the number of bytes written.

+#if IL2CPP_TARGET_WINDOWS_DESKTOP

+ if (GetOverlappedResult((HANDLE)handle, &overlapped, (LPDWORD)&written, TRUE) == 0)

+#else

if (GetOverlappedResultEx((HANDLE)handle, &overlapped, (LPDWORD)&written, INFINITE, FALSE) == 0)

+#endif

{

// Oops, we could not get the number of bytes writen, so return an error.

*error = GetLastError();

Click to expand...

Hi Tautvydas,

We're using U2019.1.8 and also had this Windows 7 users got the il2cpp error and used your work-around. However we still have Windows 7 players getting a crash starting the game due to the Unity video player (we use a background video for our main menu). Is there a fix planned for this?

https://store.steampowered.com/app/987020/DRONE_The_Game

Tautvydas-Zilys · Jul 2, 2019

eagle555 said: ↑

Hi Tautvydas,

We're using U2019.1.8 and also had this Windows 7 users got the il2cpp error and used your work-around. However we still have Windows 7 players getting a crash starting the game due to the Unity video player (we use a background video for our main menu). Is there a fix planned for this?

https://store.steampowered.com/app/987020/DRONE_The_Game
Click to expand...

Can you start a new thread on that issue, just to not conflate the two things?

eagle555 · Jul 3, 2019

Tautvydas-Zilys said: ↑

Can you start a new thread on that issue, just to not conflate the two things?
Click to expand...

Oki done:
https://forum.unity.com/threads/uni...e-crash-on-players-that-run-windows-7.704327/

Tautvydas-Zilys · Jul 8, 2019

The fix for the originally discussed issue landed to 2018.4.4f1, 2019.1.10f1, 2019.2.0b10 and 2019.3.0a9.

CliffCawley · Jul 12, 2019

Tautvydas-Zilys said: ↑

The fix for the originally discussed issue landed to 2018.4.4f1, 2019.1.10f1, 2019.2.0b10 and 2019.3.0a9.
Click to expand...

I'm in need of 2018.4.4 for this fix, but I can't find it on the download page. Only 2018.4.3f1 is available. Any idea where it is?

Tautvydas-Zilys · Jul 12, 2019

CliffCawley said: ↑

I'm in need of 2018.4.4 for this fix, but I can't find it on the download page. Only 2018.4.3f1 is available. Any idea where it is?
Click to expand...

It just got published today: https://unity3d.com/unity/qa/lts-releases

CliffCawley · Jul 31, 2019

Tautvydas-Zilys said: ↑

It just got published today: https://unity3d.com/unity/qa/lts-releases
Click to expand...

Thanks so much!

Nivbot · Oct 25, 2019

Tautvydas-Zilys said: ↑

Here's a workaround. Open "<UNITY_INSTALL_DIR>\Editor\Data\il2cpp\libil2cpp\os\Win32\File.cpp" and apply this diff:

Code (csharp):

diff --git a/libil2cpp/os/Win32/File.cpp b/libil2cpp/os/Win32/File.cpp

index 3d7f48279..1b928f663 100644

--- a/libil2cpp/os/Win32/File.cpp

+++ b/libil2cpp/os/Win32/File.cpp

@@ -503,7 +503,11 @@ namespace os

{

success = TRUE;

// The async write succeeded. Now get the number of bytes written.

+#if IL2CPP_TARGET_WINDOWS_DESKTOP

+ if (GetOverlappedResult((HANDLE)handle, &overlapped, (LPDWORD)&written, TRUE) == 0)

+#else

if (GetOverlappedResultEx((HANDLE)handle, &overlapped, (LPDWORD)&written, INFINITE, FALSE) == 0)

+#endif

{

// Oops, we could not get the number of bytes writen, so return an error.

*error = GetLastError();

Click to expand...

Where in the file do I put this? I've tried it at the beginning and the end and I get an error saying the il2cpp did not run correctly when I try to build. I'm using 2019.2.0f1. Before changing file.cpp it built fine but I got an error that ild2cpp was not found or something to that effect but only when it was installed via an installer. When I ran it directly from the build folder it ran fine. So, I either can't use IL2CPP or can't obfuscate or what?

Tautvydas-Zilys · Oct 25, 2019

Nivbot said: ↑

Where in the file do I put this? I've tried it at the beginning and the end and I get an error saying the il2cpp did not run correctly when I try to build. I'm using 2019.2.0f1. Before changing file.cpp it built fine but I got an error that ild2cpp was not found or something to that effect but only when it was installed via an installer. When I ran it directly from the build folder it ran fine. So, I either can't use IL2CPP or can't obfuscate or what?
Click to expand...

First of all, which Unity version are you on? This issue has been fixed for a while now so you shouldn't need to modify anything.

Nivbot · Oct 25, 2019

Tautvydas-Zilys said: ↑

First of all, which Unity version are you on? This issue has been fixed for a while now so you shouldn't need to modify anything.
Click to expand...

I said in my post 2019.2.0f1. Well, I'm getting an error when I run the game. I forget exactly what is said now but it was short. Something like "IL2cpp not found" or not started. I'm not quite sure now. I'd have to compile again and make a install. Like I said in my post, it works in the build folder, but when I used an installer I got the IL2cpp error.

*edit* and I don't believe I'm missing anything in the install as far as files go.

Tautvydas-Zilys · Oct 25, 2019

Nivbot said: ↑

I said in my post 2019.2.0f1. Well, I'm getting an error when I run the game. I forget exactly what is said now but it was short. Something like "IL2cpp not found" or not started. I'm not quite sure now. I'd have to compile again and make a install. Like I said in my post, it works in the build folder, but when I used an installer I got the IL2cpp error.

*edit* and I don't believe I'm missing anything in the install as far as files go.
Click to expand...

Sorry, I somehow managed to over read it.

When you say "used an installer", could you elaborate what you mean by that?

Nivbot · Oct 25, 2019

Tautvydas-Zilys said: ↑

Sorry, I somehow managed to over read it.

When you say "used an installer", could you elaborate what you mean by that?
Click to expand...

I added my compiled executable and proper folders and .dll to an installation builder and built an install file. When the installer was used to install the game I got the error after trying to play the game. I included the data folder and the Unity dll. and they were in the proper places. The .dll was in the same folder as the game.exe and the data folder was a subfolder of the same folder the .exe was in.

Tautvydas-Zilys · Oct 25, 2019

Did you make sure to include all the .DLL files? In particular, GameAssembly.dll? That error sounds like some files that were produced by Unity were not included into your installer.

Nivbot · Oct 25, 2019

Where is GameAssembly.dll? The only .dll I know about and that was created was the UnityPlayer.dll

Tautvydas-Zilys · Oct 25, 2019

Unity puts GameAssembly.dll next to UnityPlayer.dll when you use IL2CPP scripting backend.

Nivbot · Oct 25, 2019

Tautvydas-Zilys said: ↑

Unity puts GameAssembly.dll next to UnityPlayer.dll when you use IL2CPP scripting backend.
Click to expand...

This is saying it sometimes does . https://docs.unity3d.com/Manual/WindowsPlayerIL2CPPBuildProducedFiles.html when is the time it does? And why would it not be compiling one for me if I need it?

Nivbot · Oct 25, 2019

Well, I just tried it again and it did create it that time. It didn't before however, that is strange. Of course, I could have missed the file, but I thought I looked pretty carefully when making the install. Sorry, for all the time you wasted.

Tautvydas-Zilys · Oct 26, 2019

No worries. I suggest to have your installer take the whole folder produced by Unity build instead of picking individual files: they change from one Unity release to another (for instance, SymbolMap is no longer there).

MrZeker · Dec 11, 2019

Hello, im experiencing this error on machines with windows 7 (64bit)
im using Unity 2019.2.12f.1 . i havent tried the workaround yet

Tautvydas-Zilys · Dec 11, 2019

MrZeker said: ↑

Hello, im experiencing this error on machines with windows 7 (64bit)
im using Unity 2019.2.12f.1 . i havent tried the workaround yet
Click to expand...

Can you confirm GameAssembly.so is present next to the executable?

MrZeker · Dec 12, 2019

not GameAssembly.so, but GameAssembly.dll is next to the executable

Tautvydas-Zilys · Dec 13, 2019

Sorry, I was in Linux land when I wrote that reply . I did mean GameAssembly.dll.

Could you put that file to Google Drive and PM me the link to it? For some reason it fails to load on Windows 7 but I don't know why.

MrZeker · Dec 13, 2019

the already built-game right?

Tautvydas-Zilys · Dec 13, 2019

Correct.

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