I am working on GUI Extension and wrapping it with ADDON for deployment.

Information : This is a GUI Extension

          Type : UIEditor
          Deploying Using: http://domain/SDL/#app=wcm&entry=addon (UI Interface)
          Package : ZIP File
          Environment: On Premise for below Issue, Need to check procedure for Cloud

Info Details:
The Package is deployed successfully through the interface with the status="success"

           It create the extension folder at "Tridion\web\WebUI\WebRoot\Editors" with all the 
           files and  folder including config. The manifest has ("assembliesFolder": 
           "Assemblies") set which contains the DLL File required for the extension . Manifest 
            file is shown below.

Issue: :

The problem is the deployed ADDOn failed to load the DLL and it is searching in "\Tridion\web\WebUI\WebRoot\bin" for the DLL.

Once I upload a DLL on this path ADDOn works as expected. So the issue here is the Manual Step involved in this Process and All the other attributes in the "Manifest.json" are working except this attribute.

Is this a standard Practice or I am doing something wrong here.?

When I tried to deploy the AddOn in Cloud Hosted CM it is showing "Pending Activation" . So is there any other procedure we need to follow to deploy in the cloud?(might be restricted)

Option 1:

Manifest.json { "manifestVersion": "1.0", "id": "Extensionname", "version": "1.0", "name": "GUI Extension", "description": "GUI Extension", "author": "xxx", "requireConfiguration": "No", "minVersion": "", "extensions": [ { "name": "Extensionname", "type": "UIEditor", "properties": { "name": "Extensionname", "contentFolder": ".", "configurationPath": "Config\xxx.config", "assembliesFolder": "Assemblies", "globalResourcesFolder": "Resources" } } ] }

ZIP Package Contains enter image description here

Option 2:

{ "manifestVersion": "1.0", "id": "XXXExtensions", "version": "1.0", "name": "XXX GUI Extension", "description": "XX GUI Extension", "author": "Sachin Jain", "requireConfiguration": "No", "minVersion": "", "extensions": [ { "name": "XXXExtensions", "type": "UIEditor", "properties": { "name": "XXXExtensions", "contentFolder": "XXXExtensions", "configurationPath": "XXXExtensions\\Config\\XXX.config", "assembliesFolder": "XXXExtensions\\Assemblies", "globalResourcesFolder": "XXXExtensions\\Resources"

] }

ZIP Package Contains enter image description here

  • ContentFolder "." looks a little dodgy. Look at docs.rws.com/816112/694343/… - the recommendation is use a containing folder alongside your manifest, e.g MyEditor - then the paths become relative to that, so MyEditor\\Edtior, MyEditor\\Editor\\Assemblies.
    – Neil
    Commented Oct 7, 2021 at 11:50
  • Hey Neil, Thanks for response.. "." is the root of zip , It picks the client/config/css/jss/generic etc which are at the same level of Assemblies but unable to pick Assemblies. Commented Oct 7, 2021 at 12:28

2 Answers 2


The AddOn / Manifest is not forcing the creation of the required /somewhere/bin folder and moving the bin into the folder; this is being done manually in our DEV and will be done manually (or a separate script) in the Tridion Cloud environment for now.

  • This was resolved by the cloud team manually adding the referenced DLL into the filestore. Commented Dec 15, 2021 at 12:31
  • Does this mean this is a bug? The whole idea of the assembliesFolder is that DLLs in it will be loaded automatically, right?
    – Quirijn
    Commented Dec 21, 2021 at 9:21
  • To our findings, I would agree this appears to be a defect. Commented Jan 6, 2022 at 12:40
  • Manually moving definitely shouldn't be necessary. I checked an add-on I'd worked on that had additional assemblies and it is the same as the option 2 shown above and it works perfectly. The only difference I can see is that I dont use any "minVersion" in the manifest.
    – Neil
    Commented Jan 18, 2022 at 11:21
  • @Neil - are you using the RWS Cloud Instance or local version? Commented Jan 18, 2022 at 11:58

Please validate if you included assembly reference to your aspx files https://docs.rws.com/816112/722175/sdl-tridion-sites-9-5-main-documentation/adding-a--net-assembly-reference-to-your-web-control-or-webpage

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