Hi everyone,

The following files will throw an error when run with $ pdftex d1.tex.

`d1.tex`
    \nonstopmode \input expl3-generic \relax \ExplSyntaxOn % -*- expl3 -*-
    \file_input:n { d2 }
    \bye

`d2.tex`
    \msg_term:n { hello,~world }

The log file is attached.

Thanks,
Sean Allred


This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015) (preloaded format=pdftex 2015.5.24)  3 JUL 2015 18:53
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**d1.tex
(./d1.tex
(/usr/local/texlive/2015/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
Package: expl3 2015/03/01 v5547 L3 programming layer (loader) 

(/usr/local/texlive/2015/texmf-dist/tex/latex/l3kernel/expl3-code.tex
Package: expl3 2015/03/01 v5547 L3 programming layer (code) 
L3 Module: l3bootstrap 2015/02/28 v5542 L3 Bootstrap code
L3 Module: l3names 2015/02/24 v5535 L3 Namespace for primitives
L3 Module: l3basics 2015/01/27 v5500 L3 Basic definitions
L3 Module: l3expan 2014/11/27 v5472 L3 Argument expansion
L3 Module: l3tl 2015/01/27 v5500 L3 Token lists
L3 Module: l3str 2015/03/01 v5545 L3 Strings
L3 Module: l3seq 2014/08/23 v5354 L3 Sequences and stacks
L3 Module: l3int 2015/02/21 v5529 L3 Integers
\c_max_int=\count27
\l_tmpa_int=\count28
\l_tmpb_int=\count29
\g_tmpa_int=\count30
\g_tmpb_int=\count31
L3 Module: l3quark 2014/08/23 v5354 L3 Quarks
L3 Module: l3prg 2014/08/23 v5354 L3 Control structures
\g__prg_map_int=\count32
L3 Module: l3clist 2014/08/23 v5354 L3 Comma separated lists
L3 Module: l3token 2014/09/15 v5422 L3 Experimental token manipulation
L3 Module: l3prop 2014/08/23 v5354 L3 Property lists
L3 Module: l3msg 2015/02/26 v5537 L3 Messages
L3 Module: l3file 2014/08/24 v5369 L3 File and I/O operations
\l_iow_line_count_int=\count33
\l__iow_target_count_int=\count34
\l__iow_current_line_int=\count35
\l__iow_current_word_int=\count36
\l__iow_current_indentation_int=\count37
L3 Module: l3skip 2014/08/23 v5354 L3 Dimensions and skips
\c_zero_dim=\dimen16
\c_max_dim=\dimen17
\l_tmpa_dim=\dimen18
\l_tmpb_dim=\dimen19
\g_tmpa_dim=\dimen20
\g_tmpb_dim=\dimen21
\c_zero_skip=\skip18
\c_max_skip=\skip19
\l_tmpa_skip=\skip20
\l_tmpb_skip=\skip21
\g_tmpa_skip=\skip22
\g_tmpb_skip=\skip23
\c_zero_muskip=\muskip10
\c_max_muskip=\muskip11
\l_tmpa_muskip=\muskip12
\l_tmpb_muskip=\muskip13
\g_tmpa_muskip=\muskip14
\g_tmpb_muskip=\muskip15
L3 Module: l3keys 2015/01/27 v5500 L3 Key-value interfaces
\g__keyval_level_int=\count38
\l_keys_choice_int=\count39
L3 Module: l3fp 2014/08/22 v5336 L3 Floating points
\c__fp_leading_shift_int=\count40
\c__fp_middle_shift_int=\count41
\c__fp_trailing_shift_int=\count42
\c__fp_big_leading_shift_int=\count43
\c__fp_big_middle_shift_int=\count44
\c__fp_big_trailing_shift_int=\count45
\c__fp_Bigg_leading_shift_int=\count46
\c__fp_Bigg_middle_shift_int=\count47
\c__fp_Bigg_trailing_shift_int=\count48
L3 Module: l3box 2014/08/23 v5354 L3 Experimental boxes
\c_empty_box=\box16
\l_tmpa_box=\box17
\l_tmpb_box=\box18
\g_tmpa_box=\box19
\g_tmpb_box=\box20
L3 Module: l3coffins 2014/08/23 v5354 L3 Coffin code layer
\l__coffin_internal_box=\box21
\l__coffin_internal_dim=\dimen22
\l__coffin_offset_x_dim=\dimen23
\l__coffin_offset_y_dim=\dimen24
\l__coffin_x_dim=\dimen25
\l__coffin_y_dim=\dimen26
\l__coffin_x_prime_dim=\dimen27
\l__coffin_y_prime_dim=\dimen28
\c_empty_coffin=\box22
\l__coffin_aligned_coffin=\box23
\l__coffin_aligned_internal_coffin=\box24
\l_tmpa_coffin=\box25
\l_tmpb_coffin=\box26
\l__coffin_display_coffin=\box27
\l__coffin_display_coord_coffin=\box28
\l__coffin_display_pole_coffin=\box29
\l__coffin_display_offset_dim=\dimen29
\l__coffin_display_x_dim=\dimen30
\l__coffin_display_y_dim=\dimen31
L3 Module: l3color 2014/08/23 v5354 L3 Experimental color support
L3 Module: l3candidates 2015/03/01 v5544 L3 Experimental additions to l3kernel
\l__box_top_dim=\dimen32
\l__box_bottom_dim=\dimen33
\l__box_left_dim=\dimen34
\l__box_right_dim=\dimen35
\l__box_top_new_dim=\dimen36
\l__box_bottom_new_dim=\dimen37
\l__box_left_new_dim=\dimen38
\l__box_right_new_dim=\dimen39
\l__box_internal_box=\box30
\l__coffin_bounding_shift_dim=\dimen40
\l__coffin_left_corner_dim=\dimen41
\l__coffin_right_corner_dim=\dimen42
\l__coffin_bottom_corner_dim=\dimen43
\l__coffin_top_corner_dim=\dimen44
\l__coffin_scaled_total_height_dim=\dimen45
\l__coffin_scaled_width_dim=\dimen46
)
(/usr/local/texlive/2015/texmf-dist/tex/latex/l3kernel/l3pdfmode.def
File: l3pdfmode.def 2014/10/16 v5435 L3 Experimental driver: PDF mode
\l__driver_color_stack_int=\count49
)
(/usr/local/texlive/2015/texmf-dist/tex/latex/l3kernel/l3unicode-data.def
File: l3unicode-data.def 2015/03/01 v5544 L3 Unicode data
))
\g__file_internal_ior=\read1

! Undefined control sequence.
<argument> \g_file_current_name_tl 
                                   
\exp_args:NNo ...\exp_after:wN #2\exp_after:wN {#3
                                                  }
\__file_input_aux:n ...eq \g_file_current_name_tl 
                                                  \tl_gset:Nn \g_file_curren...
l.5 \file_input:n { d2 }
                        
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

(./d2.tex
*************************************************
* hello, world
*************************************************
) )
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)