[UNR-2735] Correctly report errors when cloud deployment fails to launch

CHANGELOG.md

@@ -20,6 +20,7 @@ Features listed in the internal section are not ready to use but, in the spirit
 
 ### Bug fixes:
 - Replicated references to newly created dynamic subobjects will now be resolved correctly.
+- Cloud deployment flow will now correctly report errors when a deployment fails to launch due to a missing assembly.
 
 ## [`0.8.0-preview`] - 2019-12-17
 

SpatialGDK/Build/Programs/Improbable.Unreal.Scripts/DeploymentLauncher/DeploymentLauncher.cs

@@ -189,6 +189,7 @@ private static int CreateDeployment(string[] args)
                 {
                     Console.WriteLine(
                         $"Unable to launch the deployment(s). This is likely because the project '{projectName}' or assembly '{assemblyName}' doesn't exist.");
+                    return 1;
                 }
                 else
                 {

SpatialGDK/Source/SpatialGDKEditor/Private/SpatialGDKEditorCloudLauncher.cpp

@@ -48,6 +48,10 @@ bool SpatialGDKCloudLaunch()
 	if (OutCode != 0)
 	{
 		UE_LOG(LogSpatialGDKEditorCloudLauncher, Error, TEXT("Cloud Launch failed with code %d: %s"), OutCode, *OutString);
+		if (!OutErr.IsEmpty())
+		{
+			UE_LOG(LogSpatialGDKEditorCloudLauncher, Error, TEXT("%s"), *OutErr);
+		}
 		bSuccess = false;
 	}
 
@@ -76,6 +80,10 @@ bool SpatialGDKCloudStop()
 	if (OutCode != 0)
 	{
 		UE_LOG(LogSpatialGDKEditorCloudLauncher, Error, TEXT("Cloud Launch failed with code %d: %s"), OutCode, *OutString);
+		if (!OutErr.IsEmpty())
+		{
+			UE_LOG(LogSpatialGDKEditorCloudLauncher, Error, TEXT("%s"), *OutErr);
+		}
 		bSuccess = false;
 	}