Installation of Org Chart for SharePoint 2019 as WSP package

Download wsp-package and place it to one of the servers in your Sharepoint 2019 farm. Run Sharepoint 2019 Management Shell as administrator:

SharePoint 2019 Management Shell

WspInstallation2

Print Add-SPSolution [path to wsp-package] :

Add-SPSolution

Open Central Administration as administrator and navigate to ‘System Settings’ → ‘Manage farm solutions’. Select plumsail.orgchart.2019.wsp and press ‘Deploy Solution’ link:

Solution Properties

Next step is to add SharePoint Framework add-in to your App Catalog.