If you attempt to build the Horde server Docker image right now it fails unless you have some of the layers cached or a nuget proxy/cache that has cached some packages. JetBrains have renamed their code coverage tool and removed the one currently used from nuget.
The original tool used: [Link Removed]
The replacement tool: [Link Removed]
Changes required for the Dockerfile to build again:
Differences ...  
==== //UE5/Main/Engine/Source/Programs/Horde/HordeServer/Dockerfile#1 (text) ====  
@@ -18,8 +18,9 @@  
 RUN DEBIAN_FRONTEND=noninteractive \  
        apt-get -qq update && \  
        apt-get -qq install curl zip && \  
-       dotnet tool install --global JetBrains.dotCover.GlobalTool && \  
-       ln -s /root/.dotnet/tools/dotnet-dotcover /usr/local/bin/dotnet-dotcover  
+       dotnet tool install --global JetBrains.dotCover.CommandLineTools && \  
+       ln -s /root/.dotnet/tools/dotnet-dotCover /usr/local/bin/dotnet-dotCover  
+  
 COPY --from=redis /usr/local/bin/redis-server /usr/local/bin/redis-server  
Fixed by explicitly setting the last version of JetBrains.dotCover.GlobalTool to use.
Added task [Link Removed] to replace with dotCover.CommandLineTools once TPS is completed.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-264773 in the post.
| 0 | 
| Component | UE - Foundation - Horde - Server | 
|---|---|
| Affects Versions | 5.5 | 
| Target Fix | 5.6 | 
| Fix Commit | 41818803 | 
|---|
| Created | Apr 1, 2025 | 
|---|---|
| Resolved | Apr 30, 2025 | 
| Updated | May 7, 2025 |