[WiX-users] Error 1723. A DLL required for this install to complete could not be run. C#

I know that using custom actions written in C# is not a very good idea, but it happened we are using it in our project. I experience very exasperating problem with my dll. SOMETIMES, when I add new custom action to my cs-file, some custom action that worked good previously starts to return

Re: [WiX-users] Error 1723. A DLL required for this install to complete could not be run. C#

Are you using P/Invoke (DllImportAttribute) for any custom actions? If the referenced DLL is not available in the system PATH environment variable you will see this. This is common for native debug builds, but for managed CAs you shouldn't see this unless you're referencing an assembly that you're