[Lazarus] Fatal: Can't find unit system used by Lazarus

[Antonio Fortuny]

After doing a chown -R myuser:users ./lazarus/*
lazdaemon package compiles
The install the package (from the package project: More->Install->build 
Lazarus), a lot of packages do compile OK;
But then when Lazarus itself is about to compile: BOUM:

"Compiling package SynEdit 1.0" completed
/usr/lib64/lazarus/components/sqldb/sqlstringspropertyeditordlg.pas(64,7) Hint: 
Parameter "Shift" not used
"Compiling package SQLDBLaz 1.0.1" completed
Fatal: Can't find unit system used by Lazarus

It seems to be a persions problem. I guess I'll have to do the same for 
fpc units ans sources output folder

Remember that installation couldn't be done unless sudo is used. All 
files are therefore owned by root.

Antonio.