On Ubuntu 20.04, I've texlive 2021 installed. The `~/.latexmkrc' has the following configuration:

```
$ grep -v '^#' ~/.latexmkrc | awk 'NF >0'
$pdf_mode = 5;
$xelatex = "xelatex -file-line-error -halt-on-error -interaction=nonstopmode -synctex=1 %O %S";
$xdvipdfmx = "xdvipdfmx -E -o %D %O %S";
$bibtex = "bibtex %O %S";
$bibtex_use = 2;
$makeindex = "makeindex %O -o %D %S";
add_cus_dep( 'glo', 'gls', 0, 'makeglo2gls' );
sub makeglo2gls {
system( "makeindex -s \"$_[0].ist\" -t \"$_[0].glg\" -o \"$_[0].gls\" \"$_[0].glo\"" );
} add_cus_dep( 'acn', 'acr', 0, 'makeacn2acr' );
sub makeacn2acr {
system( "makeindex -s \"$_[0].ist\" -t \"$_[0].alg\" -o \"$_[0].acr\" \"$_[0].acn\"" );
} add_cus_dep( 'acr', 'acn', 0, 'makeacr2acn' );
sub makeacr2acn {
system( "makeindex -s \"$_[0].ist\" -t \"$_[0].alg\" -o \"$_[0].acn\" \"$_[0].acr\"" );
} add_cus_dep( 'ntn', 'not', 0, 'makentn2not' );
sub makentn2not {
system("makeindex -s \"$_[0].ist\" -t \"$_[0].nlg\" -o \"$_[0].not\" \"$_[0].ntn\"" );
} add_cus_dep( 'not', 'ntn', 0, 'makenot2ntn' );
sub makenot2ntn {
system("makeindex -s \"$_[0].ist\" -t \"$_[0].nlg\" -o \"$_[0].ntn\" \"$_[0].not\"" );
} add_cus_dep( 'adx', 'and', 0, 'makeadx2and' );
sub makeadx2and {
system( "makeindex -o \"$_[0].and\" \"$_[0].adx\"" );
} add_cus_dep( 'ndx', 'nnd', 0, 'makendx2nnd' );
sub makendx2nnd {
system( "makeindex -o \"$_[0].nnd\" \"$_[0].ndx\"" );
} add_cus_dep( 'ldx', 'lnd', 0, 'makeldx2lnd' );
sub makeldx2lnd {
system( "makeindex -o \"$_[0].lnd\" \"$_[0].ldx\"" );
} add_cus_dep( 'nlo', 'nls', 0, 'makenlo2nls' );
sub makenlo2nls {
system( "makeindex -s nomencl.ist -o \"$_[0].nls\" \"$_[0].nlo\"" );
} add_cus_dep( 'eps', 'pdf', 0, 'cus_dep_delete_dest' );
add_cus_dep( 'tif', 'png', 0, 'maketif2png' );
sub maketif2png {
system( "convert \"$_[0].tif\" \"$_[0].png\"" );
} ```
Then I try to compile the following project with xelatex, <https://gitlab.kwant-project.org/jbweston/thesis>, but always failed, as shown below:

```
$ latexmk -pdfxe
[...]
Latexmk: Errors, so I did not complete making targets
Collected error summary (may duplicate other messages):
xelatex: Command for 'xelatex' gave return code 1
Refer to 'thesis.log' for details
Latexmk: Use the -f option to force complete processing,
unless error was exceeding maximum runs, or warnings treated as errors.
```
Any hints for solving this problem?

Regards,
HY

Yes,

contact the author of latexmk, he is very responsive and helpful.

greetings, el
On 08/07/2021 13:32, hongy...@gmail.com wrote:
[...]
> Any hints for solving this problem?
[...]

--
To email me replace 'nospam' with 'el'

Am 08.07.21 um 13:32 schrieb hongy...@gmail.com:
> Then I try to compile the following project with xelatex, <https://gitlab.kwant-project.org/jbweston/thesis>, but always failed, as shown below:
> Any hints for solving this problem?

I think this has nothing to do with latexmk. I downloaded those files
and called xelatex on them directly. Xelatex stops with the error

! Package mathspec Error: `amsmath' must be loaded earlier than `mathspec'.

referring to

l.54 \RequirePackage{amsmath}

This same error is displayed by latexmk. You might find it above the
output you cited in your message.

HTH,
Julius Dittmar