Erreur de compilation sur TexMaker

Bonjour

J'utilise le manuel (Xe)LaTeX appliqué aux sciences humaines, et j'ai récemment installé XeLatex 2.9.6942 puis TexMaker 5.0.3 en suivant les étapes présentées dans les annexes A et B.
J'ai donc modifié dans Option/Configurer TexMaker/Commandes toutes les occurrences "latex" et "pdflatex" en "xelatex".

Or quand je lance la compilation du code ci-dessous, j'ai le message d'erreur suivant :

Citation:

---

Impossible de lancer la commande.
xelatex -synctex=1 -interaction=nonstopmode %.tex

---

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

\documentclass[12pt,a4paper]{book} \usepackage{fontspec} \usepackage{xunicode} \usepackage{polyglossia} \setmainlanguage{french}   \begin{document} \title{Un titre d'ouvrage} \author{Le nom de son auteur}   \maketitle   Youpi lala pouet pouet   \end{document}

---

Je suis sur Windows 10.
J'ai bien remarqué que l'erreur semble récurrente chez les débutants, mais les seules solutions que j'ai trouvé sur le net ne correspondent pas à mon cas.
Pouvez-vous m'aidez ?
Merci :)

J'ai à nouveau retenté mais cette fois ci en réinitialisant la configuration de TexMaker et en sélectionnant "XeLatex" dans le menu déroulant "Compilation rapide". Quand je lance la compilation, TexMaker me fait télécharger des packages puis m'affiche l'erreur suivant :

Citation:

---

LOG FILE :
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (MiKTeX 2.9.7050 64-bit) (preloaded format=pdflatex 2019.7.6) 6 JUL 2019 02:08
entering extended mode
**./essai.tex
(essai.tex
LaTeX2e <2018-12-01>
("C:\Program Files\MiKTeX 2.9\tex/latex/base\book.cls"
Document Class: book 2018/09/03 v1.4i Standard LaTeX document class
("C:\Program Files\MiKTeX 2.9\tex/latex/base\bk12.clo"
File: bk12.clo 2018/09/03 v1.4i Standard LaTeX file (size option)
)
\c@part=\count80
\c@chapter=\count81
\c@section=\count82
\c@subsection=\count83
\c@subsubsection=\count84
\c@paragraph=\count85
\c@subparagraph=\count86
\c@figure=\count87
\c@table=\count88
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
("C:\Program Files\MiKTeX 2.9\tex/latex/fontspec\fontspec.sty"
("C:\Program Files\MiKTeX 2.9\tex/latex/l3packages/xparse\xparse.sty"
("C:\Program Files\MiKTeX 2.9\tex/latex/l3kernel\expl3.sty"
Package: expl3 2019-05-28 L3 programming layer (loader)
("C:\Program Files\MiKTeX 2.9\tex/latex/l3kernel\expl3-code.tex"
Package: expl3 2019-05-28 L3 programming layer (code)
\c_max_int=\count89
\l_tmpa_int=\count90
\l_tmpb_int=\count91
\g_tmpa_int=\count92
\g_tmpb_int=\count93
\g__kernel_prg_map_int=\count94
\c__ior_term_ior=\count95
\c_log_iow=\count96
\l_iow_line_count_int=\count97
\l__iow_line_target_int=\count98
\l__iow_one_indent_int=\count99
\l__iow_indent_int=\count100
\c_zero_dim=\dimen103
\c_max_dim=\dimen104
\l_tmpa_dim=\dimen105
\l_tmpb_dim=\dimen106
\g_tmpa_dim=\dimen107
\g_tmpb_dim=\dimen108
\c_zero_skip=\skip43
\c_max_skip=\skip44
\l_tmpa_skip=\skip45
\l_tmpb_skip=\skip46
\g_tmpa_skip=\skip47
\g_tmpb_skip=\skip48
\c_zero_muskip=\muskip10
\c_max_muskip=\muskip11
\l_tmpa_muskip=\muskip12
\l_tmpb_muskip=\muskip13
\g_tmpa_muskip=\muskip14
\g_tmpb_muskip=\muskip15
\l_keys_choice_int=\count101
\l__intarray_loop_int=\count102
\c__intarray_sp_dim=\dimen109
\g__intarray_font_int=\count103
\c__fp_leading_shift_int=\count104
\c__fp_middle_shift_int=\count105
\c__fp_trailing_shift_int=\count106
\c__fp_big_leading_shift_int=\count107
\c__fp_big_middle_shift_int=\count108
\c__fp_big_trailing_shift_int=\count109
\c__fp_Bigg_leading_shift_int=\count110
\c__fp_Bigg_middle_shift_int=\count111
\c__fp_Bigg_trailing_shift_int=\count112
\c__kernel_randint_max_int=\count113
\g__fp_array_int=\count114
\l__fp_array_loop_int=\count115
\l__sort_length_int=\count116
\l__sort_min_int=\count117
\l__sort_top_int=\count118
\l__sort_max_int=\count119
\l__sort_true_max_int=\count120
\l__sort_block_int=\count121
\l__sort_begin_int=\count122
\l__sort_end_int=\count123
\l__sort_A_int=\count124
\l__sort_B_int=\count125
\l__sort_C_int=\count126
\l__tl_analysis_normal_int=\count127
\l__tl_analysis_index_int=\count128
\l__tl_analysis_nesting_int=\count129
\l__tl_analysis_type_int=\count130
\l__regex_internal_a_int=\count131
\l__regex_internal_b_int=\count132
\l__regex_internal_c_int=\count133
\l__regex_balance_int=\count134
\l__regex_group_level_int=\count135
\l__regex_mode_int=\count136
\c__regex_cs_in_class_mode_int=\count137
\c__regex_cs_mode_int=\count138
\l__regex_catcodes_int=\count139
\l__regex_default_catcodes_int=\count140
\c__regex_catcode_D_int=\count141
\c__regex_catcode_S_int=\count142
\c__regex_catcode_L_int=\count143
\c__regex_catcode_O_int=\count144
\c__regex_catcode_A_int=\count145
\c__regex_all_catcodes_int=\count146
\l__regex_show_lines_int=\count147
\l__regex_min_state_int=\count148
\l__regex_max_state_int=\count149
\l__regex_left_state_int=\count150
\l__regex_right_state_int=\count151
\l__regex_capturing_group_int=\count152
\l__regex_min_pos_int=\count153
\l__regex_max_pos_int=\count154
\l__regex_curr_pos_int=\count155
\l__regex_start_pos_int=\count156
\l__regex_success_pos_int=\count157
\l__regex_curr_char_int=\count158
\l__regex_curr_catcode_int=\count159
\l__regex_last_char_int=\count160
\l__regex_case_changed_char_int=\count161
\l__regex_curr_state_int=\count162
\l__regex_step_int=\count163
\l__regex_min_active_int=\count164
\l__regex_max_active_int=\count165
\l__regex_replacement_csnames_int=\count166
\l__regex_match_count_int=\count167
\l__regex_min_submatch_int=\count168
\l__regex_submatch_int=\count169
\l__regex_zeroth_submatch_int=\count170
\g__regex_trace_regex_int=\count171
\c_empty_box=\box27
\l_tmpa_box=\box28
\l_tmpb_box=\box29
\g_tmpa_box=\box30
\g_tmpb_box=\box31
\l__box_top_dim=\dimen110
\l__box_bottom_dim=\dimen111
\l__box_left_dim=\dimen112
\l__box_right_dim=\dimen113
\l__box_top_new_dim=\dimen114
\l__box_bottom_new_dim=\dimen115
\l__box_left_new_dim=\dimen116
\l__box_right_new_dim=\dimen117
\l__box_internal_box=\box32
\l__coffin_internal_box=\box33
\l__coffin_internal_dim=\dimen118
\l__coffin_offset_x_dim=\dimen119
\l__coffin_offset_y_dim=\dimen120
\l__coffin_x_dim=\dimen121
\l__coffin_y_dim=\dimen122
\l__coffin_x_prime_dim=\dimen123
\l__coffin_y_prime_dim=\dimen124
\c_empty_coffin=\box34
\l__coffin_aligned_coffin=\box35
\l__coffin_aligned_internal_coffin=\box36
\l_tmpa_coffin=\box37
\l_tmpb_coffin=\box38
\g_tmpa_coffin=\box39
\g_tmpb_coffin=\box40
\l__coffin_bounding_shift_dim=\dimen125
\l__coffin_left_corner_dim=\dimen126
\l__coffin_right_corner_dim=\dimen127
\l__coffin_bottom_corner_dim=\dimen128
\l__coffin_top_corner_dim=\dimen129
\l__coffin_scaled_total_height_dim=\dimen130
\l__coffin_scaled_width_dim=\dimen131
\c__coffin_empty_coffin=\box41
\l__coffin_display_coffin=\box42
\l__coffin_display_coord_coffin=\box43
\l__coffin_display_pole_coffin=\box44
\l__coffin_display_offset_dim=\dimen132
\l__coffin_display_x_dim=\dimen133
\l__coffin_display_y_dim=\dimen134
\g__file_internal_ior=\read1
\l__seq_internal_a_int=\count172
\l__seq_internal_b_int=\count173
\c__deprecation_minus_one=\count174
)
("C:\Program Files\MiKTeX 2.9\tex/latex/l3kernel\l3pdfmode.def"
File: l3pdfmode.def 2019-04-06 v L3 Experimental driver: PDF mode
\l__driver_internal_box=\box45
\l__driver_color_stack_int=\count175
))
Package: xparse 2019-05-28 L3 Experimental document command parser
\l__xparse_current_arg_int=\count176
\g__xparse_grabber_int=\count177
\l__xparse_m_args_int=\count178
\l__xparse_v_nesting_int=\count179
)
Package: fontspec 2019/03/15 v2.7c Font selection for XeLaTeX and LuaLaTeX
! Fatal Package fontspec Error: The fontspec package requires either XeTeX or
(fontspec) LuaTeX.
(fontspec)
(fontspec) You must change your typesetting engine to,
(fontspec) e.g., "xelatex" or "lualatex"instead of
(fontspec) "latex" or "pdflatex".
For immediate help type H <return>.
...
l.45 \msg_fatal:nn {fontspec} {cannot-use-pdftex}
This is a fatal error: LaTeX will abort.
) )
Here is how much of TeX's memory you used:
9808 strings out of 492895
192377 string characters out of 3133477
212501 words of memory out of 3000000
13792 multiletter control sequences out of 15000+200000
532636 words of font info for 25 fonts, out of 3000000 for 9000
1141 hyphenation exceptions out of 8191
47i,1n,65p,254b,317s stack positions out of 5000i,500n,10000p,200000b,50000s
No pages of output.
PDF statistics:
0 PDF objects out of 1000 (max. 8388607)
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)

---

Je fais donc à nouveau le changement dans la configuraiton de TexMaker, mais cette fois-ci uniquement sur la zone entourée en rouge, et là c'est bon !
Pièce jointe 489245