Hey Omnimaga, im having some troubles...

Well you see, i have this chunk of code here :

Define LibPub convert(str,str2)=
Prgm
:©convert("value","unit"): Unit conversion
:
:
:Local out,num,expr1,expr2
:setMode(4,3)
:
:If getType(str)≠"STR" or getType(str2)≠"STR"
:  error("argument")
:
:If inString(str&str2,"+")≠0 or inString(str&str2,"-")≠0
:  error("syntax")
:
:©No dimension
:Local none
:1→none
:
:©Length units
:Local ang,au,cm,fath,fm,ft,in,km,ltyr,m,μ,mi,mil,mm,nmi,pc,rod,yd,å
:1.*^(*√(2))→m
:1.−10*m→ang
:149597900000*m→au
:0.01*m→cm
:1.8288*m→fath
:1.−15*m→fm
:0.3048*m→ft
:0.0254*m→in
:1000.*m→km
:9.4605284048815*m→ltyr
:1.−6*m→μ
:1609.344*m→mi
:2.54−5*m→mil
:0.001*m→mm
:1852.*m→nmi
:3.08567816*m→pc
:5.0292*m→rod
:0.9144*m→yd
:1.−10*m→å
:
:
:©Area units
:Local acre,ha
:4046.8564224*m^(2)→acre
:10000.*m^(2)→ha
:
:
:©Volume units
:Local cup,floz,flozuk,gal,galuk,l,ml,pt,qt,tbsp,tsp
:2.365882365−4*m^(3)→cup
:2.95735295625−5*m^(3)→floz
:2.84130625−5*m^(3)→flozuk
:0.003785411784*m^(3)→gal
:0.00454609*m^(3)→galuk
:0.001*m^(3)→l
:1.−6*m^(3)→ml
:4.73176473−4*m^(3)→pt
:9.46352946−4*m^(3)→qt
:1.47867647813−5*m^(3)→tbsp
:4.92892159375−6*m^(3)→tsp
:
:
:©Time units
:Local day,hr,μs,minute,ms,ns,s,week,yr
:^(*√(3))→s
:86400.*s→day
:3600.*s→hr
:1.−6*s→μs
:60.*s→minute
:0.001*s→ms
:1.−9*s→ns
:604800.*s→week
:31556925.9747*s→yr
:
:
:©Velocity units
:Local knot,kph,mph
:0.514444444444*((m)/(s))→knot
:0.277777777778*((m)/(s))→kph
:0.44704*((m)/(s))→mph
:
:©Temperature units
:Local θk,θc,θf,θr
:^(*√(5))→θk
:θk→θc
:0.555555555556*θk→θf
:0.555555555556*θk→θr
:
:©Luminous intensity units
:Local cd
:^(*√(7))→cd
:
:
:©Amount of substance units
:Local mol
:^(*√(11))→mol
:
:
:©Mass units
:Local amu,gm,kg,lb,mg,mton,oz,slug,ton,tonne,tonuk
:^(*√(13))→kg
:1.6605402−27*kg→amu
:0.001*kg→gm
:0.45359237*kg→lb
:1.−6*kg→mg
:1000.*kg→mton
:0.028349523125*kg→oz
:14.5939029372*kg→slug
:907.18474*kg→ton
:1000.*kg→tonne
:1016.047*kg→tonuk
:
:
:©Force units
:Local dyne,kgf,lbf,n,tonf
:((kg*m)/(s^(2)))→n
:1.−5*n→dyne
:9.80665*n→kgf
:4.44822161526*n→lbf
:8896.44323052*n→tonf
:
:
:©Energy units
:Local btu,cal,erg,ev,ftlb,j,kcal,kwh,latm
:n*m→j
:1055.05585262*j→btu
:4.1868*j→cal
:1.−7*j→erg
:1.60217733−19*j→ev
:1.35581794833*j→ftlb
:4186.8*j→kcal
:3600000.*j→kwh
:101.325*j→latm
:
:
:©Power units
:Local w,kw,hp
:j*s→w
:745.699871582*w→hp
:1000.*w→kw
:
:
:©Pressure units
:Local atm,bar,inh2o,inhg,mmh2o,mmhg,pa,psi,torr
:((n)/(m^(2)))→pa
:101325.*pa→atm
:100000.*pa→bar
:249.08891*pa→inh2o
:3386.38815789*pa→inhg
:9.80665*pa→mmh2o
:133.32236*pa→mmhg
:6894.75729317*pa→psi
:133.322368421*pa→torr
:
:
:©Kinematic viscosity units
:Local st
:1.−4*((m^(2))/(s))→st
:
:
:©Dynamic viscosity units
:Local p
:0.1*((kg)/(m*s))→p
:
:
:©Frequence units
:Local ghz,hz,khz,mhz
:((1)/(s))→hz
:1000000000.*hz→ghz
:1000.*hz→khz
:1000000.*hz→mhz
:
:
:©Current units
:Local a,ma,μa,ka
:^(*√(17))→a
:1000.*a→ka
:0.001*a→ma
:1.−6*a→μa
:
:
:©Charge units
:Local coul
:a*s→coul
:
:
:©Potential units
:Local v,volt,mv,kv
:((w)/(a))→v
:v→volt
:0.001*v→mv
:1000.*v→kv
:
:©Resistence units
:Local kω,mω,ohm,ω
:((v)/(a))→ω
:1000.*ω→kω
:1000000.*ω→mω
:1.*ω→ohm
:
:
:©Conductance units
:Local mho,mmho,siemens,μmho
:((1)/(ω))→siemens
:1.*siemens→mho
:0.001*siemens→mmho
:1.*siemens→siemens
:1.−6*siemens→μmho
:
:
:©Capacitance units
:Local f,nf,pf,μf
:((coul)/(v))→f
:1.−9*f→nf
:1.−12*f→pf
:1.−6*f→μf
:
:
:©Magnetic field strength units
:Local oe
:79.5774715459*((a)/(m))→oe
:
:
:©Magnetic flow units
:Local wb
:v*s→wb
:
:
:©Magnetic flow density units
:Local t,gs
:((wb)/(m^(2)))→t
:1.−4*t→gs
:
:
:©Inductance units
:Local henry,mh,nh,μh
:((wb)/(a))→henry
:0.001*henry→mh
:1.−9*henry→nh
:1.−6*henry→μh
:
:
:©Constants
:Local c,cc,g,gc,h,k,μ0,μb,me,mn,mp,na,q,rb,rc,rdb,vm,ε0,σ,φ0
:299792458.*((m)/(s))→c
:8987551787.37*((m)/(f))→cc
:9.80665*((m)/(s^(2)))→g
:6.6742−11*((m^(3))/(kg*s^(2)))→gc
:6.6260693−34*((kg*m^(2))/(s))→h
:1.3806505−23*((j)/(θk))→k
:1.25663706144−6*((n)/(a^(2)))→μ0
:9.27400949−24*a*m^(2)→μb
:9.1093826−31*kg→me
:1.67492728−27*kg→mn
:1.67262171−27*kg→mp
:6.022141523*((1)/(mol))→na
:1.60217653−19*coul→q
:5.291772108−11*m→rb
:8.314472*((j)/(mol*θk))→rc
:10973731.5685*((1)/(m))→rdb
:0.022413996*((m^(3))/(mol))→vm
:8.85418781762−12*((f)/(m))→ε0
:5.6704−8*((kg)/(s^(3)*θk^(4)))→σ
:2.06783372−15*wb→φ0
:
:
:©Units defined. Do the conversion
:
:
:Try
: expr(str)→expr1
: expr(str2)→expr2
:Else
:  error("syntax")
:EndTry
:((expr1)/(expr2))→num
:If abs(angle(num))>10^(−5) and abs(angle(num)-π)>10^(−5)
:  error("inconsistent")
:
:
:real(num)→num
:expr("Disp """&string(num)&" · "&str2&"""")
:EndPrgm
And when this function is called from another area that does not have this function declared in the local public library in the current problem?
I have no idea why, but this message is always being thrown : "Domain Error : An argument must be specified in a specific domain" and i cant see where the problem is... anyone help ? :O

Just to note, the code runs perfectly fine when declared in the local public variables, such as when ran from the MyLib folder and adding a new page and calling the function from there :@ It was working absolutely fine earlier, come back to it and this happens.   

Shouldn't it be enough to refresh the libraries? I don't know much about TI Basic, though