MikeX

@totor115 since your version seems to be most recent/advanced one...

As the title says, if rr#spain.spl is not already installed by the fiend component, installing pnp undead failed in this area (undead.tpa):

//Wall of Ice
ACTION_IF !FILE_EXISTS_IN_GAME rr#icew.spl BEGIN
  COPY ~atweaks/bam/rr#icew.bam~ ~override~                                          // Wall of Ice BAM
  COPY ~atweaks/spl/rr#icew.spl~ ~override~                                          // Wall of Ice
    SAY NAME1 @1024 SAY NAME2 @1024
/*    READ_LONG  0x64 ab_off
    READ_SHORT 0x68 ab_num
    FOR(i=0; i<ab_num; i+=1) BEGIN
      WRITE_SHORT (ab_off+i*0x28+0x26) %rr#icew%                                     // use new projectile
    END
*/    LPF ALTER_SPELL_HEADER INT_VAR projectile = ~%rr#icew%~ END					 // use new projectile (party friendly)
END

//Symbol, Pain
ACTION_IF !FILE_EXISTS_IN_GAME rr#spain.spl BEGIN
  COPY ~aTweaks/SPL/RR#SPAIN.SPL~ ~override~                                         // Symbol Pain
/*    READ_LONG  0x64 ab_off
    READ_SHORT 0x68 ab_num
    FOR(i=0; i<ab_num; i+=1) BEGIN
      WRITE_SHORT (ab_off+i*0x28+0x26) %RR#SPAIN%                                    // use new projectile (party friendly)
    END
*/    LPF ALTER_SPELL_HEADER INT_VAR projectile = ~%rr#spain%~ END					 // use new projectile (party friendly)
END

I've changed it to the same treatment the spell gets in rr#fiend.tph and the component installed succesfully,