Hello Jan, The most solid way is to install from sources (https://leoeditor.com/installing.html#installing-leo-from-sources-all-platforms) but unfortunately it's not the friendliest route for non-comandline folk.
Overview: 1. Install python (v3.6+) 2. Download Leo sources, and unpack somehwere convenient (e.g. c:\apps\leo-editor) 3. Install with pip from a python enabled command prompt : pip install --editable c:\apps\leo-editor 4. Run leo. >From your reported errors step 3 wasn't run or something went wrong with it (the dependent library PyQt5 wasn't installed, and probably others). Anaconda specific for Windows: *Start >> Anaconda Shell*, then: python --version pip install --editable c:\apps\leo-editor leo-messages The Pip install part will output a lot of messages. Generally the first and last 10 lines or so are most useful for troubleshooting. cheers, -matt -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/907a93bc-fcb6-496d-9151-2a63ae278c59%40googlegroups.com.