When i start minecraft 1.12.2 with optifine and the nocubes mod the mod doesn't start because i need the F version of it (i have the E version) i changed version but i can't install the other mods i want to use.

Ok thanks, i installed the optifine pre version now the mod work.

the mod doesn't start because i need the F version of it (i have the E version)

If this is the problem please see #58

i can't install the other mods i want to use.

If this is the problem please specify which mods you can't use