BuildPipeline failing in Unity 5.4

Hello,

To build our game client we are using auto Jenkins build using script with BuildPipeline.BuildPlayer(scenes,target_dir,build_target,build_options);

When we've switched into 5.4 it started failuring the build, even if doing the same build using normal Build options passes without any troubles.

The end of our log looks like that:

Ignoring 'Assets/Plugins/x86/AccessCSAPI.dll' because we're compiling for Editor
Ignoring 'C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/Advertisements/UnityEngine.Advertisements.dll' because we're compiling for Editor
Ignoring 'C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/UnityPurchasing/UnityEngine.Purchasing.dll' because we're compiling for Editor
Ignoring 'Assets/Plugins/x86/AccessCSAPI.dll' because we're compiling for Editor
Ignoring 'C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/Advertisements/UnityEngine.Advertisements.dll' because we're compiling for Editor
Ignoring 'C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/UnityPurchasing/UnityEngine.Purchasing.dll' because we're compiling for Editor
- starting compile Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll, for buildtarget 5
- starting compile Library/ScriptAssemblies/Assembly-UnityScript-firstpass.dll, for buildtarget 5
Unloading 31 Unused Serialized files (Serialized files now loaded: 0)
System memory in use before: 0.52 GB.
System memory in use after: 0.53 GB.

Unloading 31 unused Assets to reduce memory usage. Loaded Objects now: 30966.
Total: 48.485142 ms (FindLiveObjects: 2.924952 ms CreateObjectMapping: 1.755390 ms MarkObjects: 43.692497 ms DeleteObjects: 0.106088 ms)


*** Cancelled 'Build.Player.WindowsStandaloneSupport' in 1923 seconds (1923144 ms)

Exception: BuildPlayer failure: 2 errors
at Build.GenericBuild (System.String[] scenes, System.String target_dir, BuildTarget build_target, BuildOptions build_options) [0x0001d] in E:\Project\GloriaVictis\Assets\Editor\Build.cs:109
at Build.PerformClientBuild () [0x00014] in E:\Project\GloriaVictis\Assets\Editor\Build.cs:22

(Filename: Assets/Editor/Build.cs Line: 109)

executeMethod method Build.PerformClientBuild threw exception.

(Filename: C:/buildslave/unity/build/Runtime/Utilities/Argv.cpp Line: 171)


Aborting batchmode due to failure:
executeMethod method Build.PerformClientBuild threw exception.

Symbol file LoadedFromMemory doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
Symbol file E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll.mdb doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
Symbol file LoadedFromMemory doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
Symbol file E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll.mdb doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
Symbol file LoadedFromMemory doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
Symbol file E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll.mdb doesn't match image E:\Project\GloriaVictis\Assets\Plugins\Bcrypt\BCrypt.Net.dll
FATAL: Unity3d command line execution failed with status 1
Build step 'Invoke Unity3d Editor' marked build as failure
[Boolean condition] checking [false] against [^(1|y|yes|t|true|on|run)$] (origin token: ${ENV,var="BuildServer"})
Run condition [Boolean condition] preventing perform for step [[Build other projects]]
SSH: Current build result is [FAILURE], not going to run.
Warning: you have no plugins providing access control for builds, so falling back to legacy behavior of permitting any downstream builds to be triggered
[Boolean condition] checking [false] against [^(1|y|yes|t|true|on|run)$] (origin token: ${ENV,var="BuildServer"})
Run condition [Boolean condition] preventing perform for step [Builder to mark whether executed]
Finished: FAILURE


Looking trough entire log we couldn't find any "Error". It surely started to happen after 5.4 release and is super painfull for us since we can't do auto builds anymore.

 

This looks like that plugin was re-compiled and the updated DLL was added to the project but it still has the old mdb file. That mdb file doesn't match the new DLL.

 

It seems like the default setting is StrictMode and we cannot switch it off
https://docs.unity3d.com/ScriptReference/BuildOptions.StrictMode.html

 

Our project is experiencing the same build failure issue, though with many more errors....

The build does seem to actually finish and work correctly, however, despite Unity reporting errors and failure.