Hi hubblec4,
I have a project which uses the VirtualStringTree(VST) 4.8.7.4, for easy and fast install I use the Online-Package-Manager(OPM).
But since rev2.0RC1-RC3 I get an error. Installing process in the OPM seems to work but when the IDE is recompile then occurs an error:
Multiple Units found: In attachments is a pic with this error(german message)
With Lazarus 2.0(RC1, RC2, ...), OPM uses VTV 5.3.3.1 internally, this is why VTV 5.3.3.1 is installed by default. By trying to install an older version of VTV, 4.8.7.4 for example, you will get the multiple ppu message, like the one in your screenshot. You have two choices:
1. Stay with VTV 4.8.7.4 and uninstall OPM and VTV 5.3.3.1, delete the folders from the component directory to prevent the multiple ppu messages
2. Switch to VTV 5.3.3.1, your project should work out of the box, without any issues
PS: I will remove 4.8.7.4 from the central repository to prevent further confusions