Ok, now I'm having another issue...it is obviously because I am using a different version of FPC to compile my Lazarus projects now, but I am not sure what to do about it

My Lazarus projects can't find standard units like IniFiles, Contnrs, etc. and I am unsure how to proceed.

Here is a screenshot of my Lazarus Environmental (Files) options:



And here is my fpc.cfg file (version 2.4.2, the 2.5.1 doesn't have one):
Code:
#
# Config file generated by fpcmkcfg on 11/04/2011 - 22:24:39
# Example fpc.cfg for Free Pascal Compiler
#

# ----------------------
# Defines (preprocessor)
# ----------------------

#
# nested #IFNDEF, #IFDEF, #ENDIF, #ELSE, #DEFINE, #UNDEF are allowed
#
# -d is the same as #DEFINE
# -u is the same as #UNDEF
#

#
# Some examples (for switches see below, and the -? helppages)
#
# Try compiling with the -dRELEASE or -dDEBUG on the commandline
#

# For a release compile with optimizes and strip debuginfo
#IFDEF RELEASE
  -O2
  -Xs
  #WRITE Compiling Release Version
#ENDIF

# For a debug version compile with debuginfo and all codegeneration checks on
#IFDEF DEBUG
  -glh
  -Crtoi
  #WRITE Compiling Debug Version
#ENDIF

# ----------------
# Parsing switches
# ----------------

# Pascal language mode
#      -Mfpc      free pascal dialect (default)
#      -Mobjfpc   switch some Delphi 2 extensions on
#      -Mdelphi   tries to be Delphi compatible
#      -Mtp       tries to be TP/BP 7.0 compatible
#      -Mgpc      tries to be gpc compatible
#      -Mmacpas   tries to be compatible to the macintosh pascal dialects
#
# Turn on Object Pascal extensions by default
#-Mobjfpc

# Assembler reader mode
#      -Rdefault  use default assembler
#      -Ratt      read AT&T style assembler
#      -Rintel    read Intel style assembler
#
# All assembler blocks are AT&T styled by default
#-Ratt

# Semantic checking
#      -S2        same as -Mobjfpc
#      -Sc        supports operators like C (*=,+=,/= and -=)
#      -Sa        include assertion code.
#      -Sd        same as -Mdelphi
#      -Se<x>     compiler stops after the <x> errors (default is 1)
#      -Sg        allow LABEL and GOTO
#      -Sh        Use ansistrings
#      -Si        support C++ styled INLINE
#      -SI<x>     set interface style to <x>
#         -SIcomCOM compatible interface (default)
#         -SIcorbaCORBA compatible interface
#      -Sm        support macros like C (global)
#      -So        same as -Mtp
#      -Sp        same as -Mgpc
#      -Ss        constructor name must be init (destructor must be done)
#      -St        allow static keyword in objects
#
# Allow goto, inline, C-operators, C-vars
-Sgic

# ---------------
# Code generation
# ---------------

# Uncomment the next line if you always want static/dynamic units by default
# (can be overruled with -CD, -CS at the commandline)
#-CS
#-CD

# Set the default heapsize to 8Mb
#-Ch8000000

# Set default codegeneration checks (iocheck, overflow, range, stack)
#-Ci
#-Co
#-Cr
#-Ct

# Optimizer switches for i386 compiler
# -Os        generate smaller code
# -O1        level 1 optimizations (quick optimizations)
# -O2        level 2 optimizations (-O1 + slower optimizations)
# -O3        level 3 optimizations (same as -O2u)
# -Oa=N      set alignment to N
# -OoX       switch on optimalization X. 
# -OoNOX     switch off optimalization X.
#               X is one of REGVAR UNCERTAIN STACKFRAME PEEPHOLE ASMCSE LOOPUNROLL
# -OpCPU     set target processor.
#             CPU is one of 386, PENTIUM, PENTIUM2, PENTIUM3, PENTIUM4, PENTIUMM 


# -----------------------
# Set Filenames and Paths
# -----------------------

# Both slashes and backslashes are allowed in paths

# path to the messagefile, not necessary anymore but can be used to override
# the default language
#-Frc:\lazarus\fpc\2.4.2/msg/errore.msg
#-Frc:\lazarus\fpc\2.4.2/msg/errorn.msg
#-Frc:\lazarus\fpc\2.4.2/msg/errores.msg
#-Frc:\lazarus\fpc\2.4.2/msg/errord.msg
#-Frc:\lazarus\fpc\2.4.2/msg/errorr.msg

# path to the gcclib
#-Flc:\lazarus\fpc\2.4.2/lib

#IFDEF FPCAPACHE_1_13
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/httpd13/
#ELSE
#IFDEF FPCAPACHE_2_0
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/httpd20
#ELSE
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/httpd22
#ENDIF
#ENDIF

# searchpath for units and other system dependent things
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/*
-Fuc:\lazarus\fpc\2.4.2/units/$FPCTARGET/rtl

# searchpath for libraries
#-Flc:\lazarus\fpc\2.4.2/lib
#-Fl/lib;/usr/lib

# searchpath for tools
-FDc:\lazarus\fpc\2.4.2/bin/$FPCTARGET

# binutils prefix for cross compiling
#IFDEF FPC_CROSSCOMPILING
  -XP$FPCTARGET-
#ENDIF


# -------------
# Linking
# -------------

# generate always debugging information for GDB (slows down the compiling
# process)
#      -gc        generate checks for pointers
#      -gd        use dbx
#      -gg        use gsym
#      -gh        use heap trace unit (for memory leak debugging)
#      -gl        use line info unit to show more info for backtraces
#      -gv        generates programs tracable with valgrind
#      -gw        generate dwarf debugging info
#
# Enable debuginfo and use the line info unit by default
#-gl

# always pass an option to the linker
#-k-s

# Always strip debuginfo from the executable
-Xs


# -------------
# Miscellaneous
# -------------

# Write always a nice FPC logo ;)
-l

# Verbosity
#      e : Show errors (default)       d : Show debug info
#      w : Show warnings               u : Show unit info
#      n : Show notes                  t : Show tried/used files
#      h : Show hints                  m : Show defined macros
#      i : Show general info           p : Show compiled procedures
#      l : Show linenumbers            c : Show conditionals
#      a : Show everything             0 : Show nothing (except errors)
#      b : Show all procedure          r : Rhide/GCC compatibility mode
#          declarations if an error    x : Executable info (Win32 only)
#          occurs
#
# Display Info, Warnings, Notes and Hints
-viwn
# If you don't want so much verbosity use
#-vw
Any ideas?

cheers,
Paul