External Tools Button not visible/Addins not loading

[IrakliA]

Hi all,

In Revit, External Tools button is missing. As I have searched for the common solutions, I found out that the Revit only displays the button if external add-ins exist. Investigating that path, I noticed that whenever I open Revit, dialog box asking me whether to load the plug-in or not does not appear at all. Thus, I conclude that Revit is not able to detect external add-ins which I manually save. 

So, If you had similar problem, how have you resolved? How can I indicate Revit to scan the folder? Any advice will be much appreciated. 

[RPTHOMAS108]

Is the manifest for IExternalCommand or IExternalApplication where you have created buttons on Revit tab?

Are you loading midsession?

Have you previously picked an option to always not load an addin?

You may want to look at the Revit Journal file as it may indicate what is happening.

[Anonymous]

I am also facing the same issue.i installed Newiswork addin then the external tools tab is visible to me.But my addin is still not visible under external tools tab.please help

[longt61]

There might be other reasons that lead to your problem, however, since the load add-in dialog did not appear at revit start-up, I take a venture to guess that your add-in file is the problem:

1. Your add-in file might lacks some information or contains incorrect information. If this is the case, you can take any pre installed add-in file that works, copy and modify them to suit your need. Just change

     1.1. the add-in type

     1.2. the exact full class name in your dll

     1.3. the full path to your dll file

     1.4. the new GUID for your external app/ command.

2. you did not put the add-in file in the correct folder. The assembly (dll) file can be any where you want, but the addin file must be in the 2 special folders for Revit to detect it. By default, these folders are:

    2.1. C:\ProgramData\Autodesk\Revit\Addins\your_revit_version

    2.2. C:\Users\user_name\AppData\Roaming\Autodesk\Revit\Addins\your_revit_version

Hope this help.