Radiroot package in GAP generating errors - package

Question

When I run the following commands
g := UnivariatePolynomial(Rationals, [12,-5,0,0,0,1]);
RootsOfPolynomialAsRadicals(g);
I get this error
*** too many arguments: ...;,nf=nfinit([f,nfbasis(f,1)]);fac=lift(nffact
*** ^--------------------
*** at top-level: for(i=1,#fac[,1],for(j=1,fac[i,2
*** ^--------------------
*** incorrect type in _[,_] OCcompoC [not a matrix] (t_POL).
Error, List Element: <list>[1] must have an assigned value in
faktoren[1] := lcoeff * faktoren[1]; at /proc/cygdrive/C/gap486/pkg/Alnuth-3.0.0/gap/factors.gi:99 called from
FactorsPolynomialPari( AlgExtEmbeddedPol( H, poly )
) at /proc/cygdrive/C/gap486/pkg/Alnuth-3.0.0/gap/factors.gi:51 called from
FactorsPolynomialAlgExt( erw.H, poly ) at /proc/cygdrive/C/gap486/pkg/radiroot/lib/SplittField.gi:237 called from
RR_Zerfaellungskoerper( poly, rec(
roots := [ ],
degs := [ ],
coeffs := [ ],
K := FieldByMatrices( [ [ [ 1 ] ] ] ),
H := Rationals ) ) at /proc/cygdrive/C/gap486/pkg/radiroot/lib/Radicals.gi:293 called from
CallFuncList( RootsOfPolynomialAsRadicalsNC, arg
) at /proc/cygdrive/C/gap486/pkg/radiroot/lib/Radicals.gi:253 called from
<function "RootsOfPolynomialAsRadicals">( <arguments> )
called from read-eval loop at line 2 of *stdin*
you can 'return;' after assigning a value
I am using GAP 4.8.6 on windows 10, installed from the windows installer on the GAP downloads page, and PARI/GP 2.9.1 64 bit (stable installer). I've also tried manually downloading and using the latest versions of Alnuth and Radiroot but I'm still getting the same error. Does anyone know how to fix this?

Answer 1

This now works in GAP 4.11.0, with Alnuth 3.1.2, RadiRoot 2.8 and Pari/GP 2.9.3, under macOS:
g := UnivariatePolynomial(Rationals, [12,-5,0,0,0,1]);
RootsOfPolynomialAsRadicals(g);
starts an xdvi viewer which displays the result. It's hard to read as an image, so I am providing the LaTeX source for it, which may be more useful:
\documentclass[fleqn]{article}
\setlength{\paperwidth}{84cm}
\setlength{\textwidth}{80cm}
\setlength{\paperheight}{59.5cm}
\setlength{\textheight}{57cm}
\begin{document}
\noindent
An expression by radicals for the roots of the polynomial $x^{5} - 5x + 12$ with the $n$-th root of unity $\zeta_n$ and
\\
$\omega_1 = \sqrt[2]{ - 10}$,\\
$\omega_2 = \sqrt[5]{\left( - \frac{421}{5}\zeta_{5} - \frac{449}{5}\zeta_{5}^{2} - \frac{49}{5}\zeta_{5}^{3} + \frac{229}{5}\zeta_{5}^{4}\right) + \left( - \frac{168}{25}\zeta_{5} - \frac{849}{25}\zeta_{5}^{2} - \frac{1101}{25}\zeta_{5}^{3} - \frac{582}{25}\zeta_{5}^{4}\right)\omega_1}$,\\
\\
is:
\\
\noindent
$\left( - \frac{2}{11}\zeta_{5} - \frac{1}{11}\zeta_{5}^{2} + \frac{4}{11}\zeta_{5}^{3} - \frac{4}{11}\zeta_{5}^{4}\right)\omega_2 + \left( - \frac{42}{121}\zeta_{5} + \frac{34}{121}\zeta_{5}^{2} - \frac{92}{121}\zeta_{5}^{3} + \frac{15}{121}\zeta_{5}^{4}\right)\omega_2^2 + \left(\frac{91}{605}\zeta_{5} + \frac{7}{605}\zeta_{5}^{2} + \frac{38}{605}\zeta_{5}^{3} + \frac{149}{605}\zeta_{5}^{4}\right)\omega_1\omega_2^2 + \left(\frac{175}{1331}\zeta_{5} + \frac{302}{1331}\zeta_{5}^{2} + \frac{706}{1331}\zeta_{5}^{3} + \frac{482}{1331}\zeta_{5}^{4}\right)\omega_2^3 + \left(\frac{255}{1331}\zeta_{5} + \frac{364}{1331}\zeta_{5}^{2} + \frac{40}{1331}\zeta_{5}^{3} + \frac{246}{1331}\zeta_{5}^{4}\right)\omega_1\omega_2^3 + \left( - \frac{11480}{14641}\zeta_{5} + \frac{420}{14641}\zeta_{5}^{2} + \frac{7725}{14641}\zeta_{5}^{3} - \frac{740}{14641}\zeta_{5}^{4}\right)\omega_2^4 + \left(\frac{786}{14641}\zeta_{5} + \frac{6399}{14641}\zeta_{5}^{2} + \frac{45}{14641}\zeta_{5}^{3} + \frac{1275}{14641}\zeta_{5}^{4}\right)\omega_1\omega_2^4$
\end{document}
It's difficult to say what was the original problem, there were many changes in both packages, which are now hosted on GitHub - the source code repositories are https://github.com/gap-packages/radiroot and https://github.com/gap-packages/alnuth.