... Scroll down the list and tick the box next to HtmlViewer, then click the Install button. If there is a choice click install from repository. 2_101438_360000001.png Note in passing some of the other useful packages that you might one day want to install. There are 140 of them listed at present. 8. click Yes to confirm: 2_101438_360000002.png 9. the process will take a while, after which Lazarus will restart again. But this time if you look in the component bar you will see that the HtmlViewer is now installed: 2_101438_360000003.png 10. which means you are now able to edit the forms without any error messages. cheers, Martin. posted: 22 Oct 2019 11:20 from: Jim Guthrie Martin, I'll put this in this thread since that might be the correct one. But for those who might be interested in using the free Delphi IDE or the Lazarus IDE, there's an option to download a free PDF of Marco Cantu's latest ebook on Object Pascal, the OOP language used in Delphi and Lazarus. The URL for the small amount ...