ArcGIS Pro Add-in not functioning

Error Message

After downloading and attempting to load an add-in in ArcGIS Pro, such as those provided through ArcGIS Solutions, the add-in may not appear or be accessible as expected.

In some cases, the add-in installs successfully but the associated ribbon tab, tools, or functionality are not visible within the application interface. As a result, users are unable to access or use the add-in even though the file has been downloaded.

Cause

This issue may occur due to one or more of the following:

• The downloaded .esriAddInX file is blocked by Windows security settings.
• The add-in was not installed correctly.
• The installed add-in version is not compatible with the current version of ArcGIS Pro.
• The add-in is installed but not enabled in the Add-In Manager.
• The add-in file is corrupted or incomplete due to a failed download.

Solution or Workaround

To resolve the issue, verify the following:

Unblock the downloaded add-in file

1. Locate the downloaded .esriAddInX file.
2. Right-click the file and select Properties.
3. In the General tab, check for a Security section.
4. If present, select Unblock.
5. Click Apply, then OK.
6. Double-click the .esriAddInX file to install the add-in.

Install the add-in

1. Double-click the .esriAddInX file.
2. When prompted, confirm the add-in installation.
3. Restart ArcGIS Pro if it is currently open.

Verify the add-in in Add-In Manager

1. Open ArcGIS Pro.
2. Click the Project tab.
3. Select Add-In Manager.
4. Verify that the add-in appears in the list and is enabled.

Confirm version compatibility

• Ensure the add-in version is compatible with the installed version of ArcGIS Pro. Add-ins developed for earlier or later versions may fail to load.
• If necessary, download the latest supported version from the source where the add-in was obtained, such as ArcGIS Solutions.

Re-download the add-in

If the issue persists, delete the existing .esriAddInX file and download the add-in again from the official source. After downloading, repeat the installation steps.