Probable Cause - I saw this in 10.7, where this Class was removed, but the entries in the manifest.v3 file were not. Perhaps this is the same issue for 10.5 too, but I cannot say for certain.
Option 1 - Compile the WmDesigner package by invoking this service wm.server.packages:compilePackage, which takes the package name as input.
Option 2 - If that doesn’t solve the problem, then perhaps give this a try. However, as I mentioned, I cannot confirm if this Class removal issue is applicable for 10.5 too. Having said that, here’s what you need to do -
Edit the manifest.v3 file under your WmDesigner package, remove these 2 entries, and restart the IS -
-
Startup Service -
<null name="wm.designer.sim.fitDistribution:init"/>
-
Shutdown Service -
<null name="wm.designer.sim.fitDistribution:shutdown"/>
Official Fix - For 10.7, an official fix was released for Deployer that resolved this.
KM
#Integration-Server-and-ESB#webMethods