Flavio Arthur
I just completed the installation  on a Raspberry 4. 
Some warnings related to "changed in GCC 7.1",  but it seems completed.
"Compilation finished successfully!"

I can access the built-in webserver 

I can get the Welcome to OpenPLC screen.

But username    openplc   and  password  openplc  returns  "Bad credentials! Try again

Any help ?
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Flavio Arthur
Rebooting after installation, it started to accept login.
It seems OK now
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