tramp (2.1.8); cannot open file

[Qichen Huang]

Enter your bug report in this message, including as much detail
as you possibly can about the problem, what you did to cause it
and what the local and remote machines are.

If you can give a simple set of instructions to make this bug
happen reliably, please include those.  Thank you for helping
kill bugs in TRAMP.

Another useful thing to do is to put

  (setq tramp-verbose 8)

in the ~/.emacs file and to repeat the bug.  Then, include the
contents of the *tramp/foo* buffer and the *debug tramp/foo*
buffer in your bug report.

--bug report follows this line--

I use plink to connect ssh server. The connection is fine, I can list the directory on remote server. 
But I can not open files. The error message is:
'PC-look-for-include-file: Wrong type argument: stringp, nil'

(setq debug-on-error t)

the Backtrace message is (I can't copy the complete byte-code part because of the illegel characters):
Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  string-match("[\"<]\\([^\"<>]*\\)[\">]?$" nil)
  PC-look-for-include-file()
  run-hook-with-args-until-success(PC-look-for-include-file)
  byte-code("ࣃ℀ᜀ" [filename buf error file-exists-p file-readable-p kill-buffer signal file-error "File is not readable" run-hook-with-args-until-success find-file-not-found-functions t] 4)
  find-file-noselect-1(#<buffer .vimrc<2>> "/plink:
address@hidden:/home/huangq/.vimrc" nil nil "/plink:address@hidden:/home/huangq/.vimrc" (50574 (-1 0)))
  find-file-noselect("/address@hidden:~/.vimrc" nil nil t)
  ad-Orig-find-file("/huangq@
10.150.59.52:~/.vimrc" t)
  (setq ad-return-value (ad-Orig-find-file filename wildcards))
  (let (ad-return-value) (setq ad-return-value (ad-Orig-find-file filename wildcards)) ad-return-value)
  find-file("/huangq@
10.150.59.52:~/.vimrc" t)
  call-interactively(find-file)
  ido-file-internal(raise-frame)
  ido-find-file()
  call-interactively(ido-find-file)



Emacs  : GNU Emacs 
22.0.92.1 (i386-mingw-nt5.1.2600)
 of 2007-01-01 on DTOP
Package: tramp (2.1.8)

current state:
==============
(setq
 tramp-current-method "plink"
 tramp-current-user "huangq"
 tramp-current-host "10.150.59.52"
 tramp-auto-save-directory nil
 tramp-default-method "plink"
 tramp-default-method-alist '(("" "\\`\\(anonymous\\|ftp\\)\\'" "ftp") ("\\`ftp\\." "" "ftp")
                              ("\\`localhost\\'" "\\`root\\'" "su"))
 tramp-default-host "HUANGQ"
 tramp-default-proxies-alist nil
 tramp-default-user nil
 tramp-default-user-alist '(("fish" nil "huangq") ("\\`su\\(do\\)?\\'" nil "root")
                            ("\\`r\\(em\\)?\\(cp\\|sh\\)\\|telnet\\'" nil "huangq"))
 tramp-rsh-end-of-line "\n"
 tramp-default-password-end-of-line "\n"
 tramp-remote-path '(tramp-default-remote-path "/usr/sbin" "/usr/local/bin" "/local/bin"
                     "/local/freeware/bin" "/local/gnu/bin" "/usr/freeware/bin" "/usr/pkg/bin"
                     "/usr/contrib/bin")
 tramp-login-prompt-regexp ".*ogin\\( .*\\)?: *"
 tramp-password-prompt-regexp "(base64-decode-string \"Xi4qXChbcFBdYXNzd29yZFx8W3BQXWFzc3BocmFzZVwpLio6AD8gKg==\""
 tramp-wrong-passwd-regexp "^.*\\(Connection \\(?:closed by foreign host\\.\\|refused\\)\\|Host key verification failed\\.\\|Login \\(?:[Ii]ncorrect\\)\\|N\\(?:ame or service not known\\|o supported authentication methods left to try!\\)\\|Permission denied\\.\\|Sorry, try again\\.\\|Tramp connection closed\\).*\\|^.*\\(Received signal [0-9]+\\).*"
 tramp-yesno-prompt-regexp "\\(Are you sure you want to continue connecting (yes/no)\\?\\)\\s-*"
 tramp-yn-prompt-regexp "\\(\\(?:Store key in cache\\? (y/\\|Update cached key\\? (y/n, Return cancels connectio\\)n)\\)\\s-*"
 tramp-terminal-prompt-regexp "\\(TERM = (.*)\\|Terminal type\\? \\[.*\\]\\)\\s-*"
 tramp-temp-name-prefix "tramp."
 tramp-file-name-structure '("^/\\(\\([a-zA-Z_0-9-]+\\):\\)?\\(\\([^:/ 	]+\\)@\\)?\\([a-zA-Z0-9_.-]+\\(#[0-9]+\\)?\\)?:\\(.*$\\)" 2 4 5 7)
 tramp-file-name-regexp "\\`/[^/:]+:"
 tramp-methods '(("fish") ("ftp")
                 ("rcp" (tramp-login-program "rsh") (tramp-login-args (("%h") ("-l" "%u")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "rcp")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("scp" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp")
                  (tramp-copy-args (("-P" "%p") ("-p" "%k") ("-q"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("scp1" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-1" "-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp")
                  (tramp-copy-args (("-1") ("-P" "%p") ("-p" "%k") ("-q")))
                  (tramp-copy-keep-date t) (tramp-password-end-of-line nil))
                 ("scp2" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-2" "-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp")
                  (tramp-copy-args (("-2") ("-P" "%p") ("-p" "%k") ("-q")))
                  (tramp-copy-keep-date t) (tramp-password-end-of-line nil))
                 ("scp1_old" (tramp-login-program "ssh1")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp1")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("scp2_old" (tramp-login-program "ssh2")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp2")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("sftp" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "sftp") (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("rsync" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "rsync")
                  (tramp-copy-args (("-e" "ssh") ("-t" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("remcp" (tramp-login-program "remsh") (tramp-login-args (("%h") ("-l" "%u")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "rcp")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("rsh" (tramp-login-program "rsh") (tramp-login-args (("%h") ("-l" "%u")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("ssh" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("ssh1" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-1" "-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("ssh2" (tramp-login-program "ssh")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-2" "-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("ssh1_old" (tramp-login-program "ssh1")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("ssh2_old" (tramp-login-program "ssh2")
                  (tramp-login-args (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("remsh" (tramp-login-program "remsh") (tramp-login-args (("%h") ("-l" "%u")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("telnet" (tramp-login-program "telnet") (tramp-login-args (("%h")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("su" (tramp-login-program "su") (tramp-login-args (("-") ("%u")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("sudo" (tramp-login-program "sudo")
                  (tramp-login-args (("-u" "%u") ("-s" "-p" "Password:")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("scpc" (tramp-login-program "ssh")
                  (tramp-login-args
                   (("%h") ("-l" "%u") ("-p" "%p") ("-o" "address@hidden:%%p")
                    ("-o" "ControlMaster=yes") ("-e" "none"))
                   )
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp")
                  (tramp-copy-args
                   (("-P" "%p") ("-p" "%k") ("-q") ("-o" "address@hidden:%%p")
                    ("-o" "ControlMaster=auto"))
                   )
                  (tramp-copy-keep-date t) (tramp-password-end-of-line nil))
                 ("scpx" (tramp-login-program "ssh")
                  (tramp-login-args
                   (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none" "-t" "-t" "/bin/sh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "scp")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 ("sshx" (tramp-login-program "ssh")
                  (tramp-login-args
                   (("%h") ("-l" "%u") ("-p" "%p") ("-e" "none" "-t" "-t" "/bin/sh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line nil))
                 ("krlogin" (tramp-login-program "krlogin")
                  (tramp-login-args (("%h") ("-l" "%u") ("-x"))) (tramp-remote-sh "/bin/sh")
                  (tramp-copy-program nil) (tramp-copy-args nil) (tramp-copy-keep-date nil)
                  (tramp-password-end-of-line nil))
                 ("plink" (tramp-login-program "plink")
                  (tramp-login-args (("%h") ("-l" "%u") ("-P" "%p") ("-ssh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line "xy"))
                 ("plink1" (tramp-login-program "plink")
                  (tramp-login-args (("%h") ("-l" "%u") ("-P" "%p") ("-1" "-ssh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program nil) (tramp-copy-args nil)
                  (tramp-copy-keep-date nil) (tramp-password-end-of-line "xy"))
                 ("pscp" (tramp-login-program "plink")
                  (tramp-login-args (("%h") ("-l" "%u") ("-P" "%p") ("-ssh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "pscp")
                  (tramp-copy-args (("-scp") ("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line "xy"))
                 ("psftp" (tramp-login-program "plink")
                  (tramp-login-args (("%h") ("-l" "%u") ("-P" "%p") ("-ssh")))
                  (tramp-remote-sh "/bin/sh") (tramp-copy-program "pscp")
                  (tramp-copy-args (("-psftp") ("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line "xy"))
                 ("fcp" (tramp-login-program "fsh")
                  (tramp-login-args (("%h") ("-l" "%u") ("sh" "-i")))
                  (tramp-remote-sh "/bin/sh -i") (tramp-copy-program "fcp")
                  (tramp-copy-args (("-p" "%k"))) (tramp-copy-keep-date t)
                  (tramp-password-end-of-line nil))
                 )
 tramp-end-of-output "///e2e83f118acd212e60ecf89ac616f662"
 tramp-local-coding-commands '((b64 base64-encode-region base64-decode-region)
                               (uu tramp-uuencode-region uudecode-decode-region)
                               (pack
                                "perl -e 'binmode STDIN; binmode STDOUT; print pack(q{u*}, join q{}, <>)'" "perl -e 'binmode STDIN; binmode STDOUT; print unpack(q{u*}, join q{}, <>)'")
                               )
 tramp-remote-coding-commands '((b64 "mimencode -b" "mimencode -u -b")
                                (b64 "mmencode -b" "mmencode -u -b")
                                (b64 "recode data..base64" "recode base64..data")
                                (b64 tramp-perl-encode-with-module tramp-perl-decode-with-module)
                                (b64 tramp-perl-encode tramp-perl-decode)
                                (uu "uuencode xxx" "uudecode -o /dev/stdout")
                                (uu "uuencode xxx" "uudecode -o -")
                                (uu "uuencode xxx" "uudecode -p")
                                (uu "uuencode xxx" tramp-uudecode)
                                (pack
                                 "perl -e 'binmode STDIN; binmode STDOUT; print pack(q{u*}, join q{}, <>)'" "perl -e 'binmode STDIN; binmode STDOUT; print unpack(q{u*}, join q{}, <>)'")
                                )
 tramp-actions-before-shell '((tramp-login-prompt-regexp tramp-action-login)
                              (tramp-password-prompt-regexp tramp-action-password)
                              (tramp-wrong-passwd-regexp tramp-action-permission-denied)
                              (shell-prompt-pattern tramp-action-succeed)
                              (tramp-shell-prompt-pattern tramp-action-succeed)
                              (tramp-yesno-prompt-regexp tramp-action-yesno)
                              (tramp-yn-prompt-regexp tramp-action-yn)
                              (tramp-terminal-prompt-regexp tramp-action-terminal)
                              (tramp-process-alive-regexp tramp-action-process-alive))
 tramp-actions-copy-out-of-band '((tramp-password-prompt-regexp tramp-action-password)
                                  (tramp-wrong-passwd-regexp tramp-action-permission-denied)
                                  (tramp-copy-failed-regexp tramp-action-permission-denied)
                                  (tramp-process-alive-regexp tramp-action-out-of-band))
 tramp-terminal-type "dumb"
 tramp-shell-prompt-pattern "(base64-decode-string \"XlteIyQlPgpdKlsjJCU+XSAqXCgbXFtbMC05O10qW2EtekEtWl0gKlwpKg==\""
 tramp-backup-directory-alist nil
 tramp-cache-data '(([cl-struct-tramp-file-name "plink" "huangq" "10.150.59.52" nil]
                     ("uname" "Linux 
2.6.18-4-686") ("default-remote-path" "/bin:/usr/bin")
                     ("test" "test") ("/bin" t) ("/usr/bin" t) ("/usr/sbin" t)
                     ("/usr/local/bin" t) ("/local/bin" nil) ("/local/freeware/bin" nil)
                     ("/local/gnu/bin" nil) ("/usr/freeware/bin" nil) ("/usr/pkg/bin" nil)
                     ("/usr/contrib/bin" nil) ("remote-shell" "/bin/sh")
                     ("home-directory" "/home/huangq") ("file-exists" "test -e") ("stat" "\\stat")
                     ("id" "/usr/bin/id") ("gid-integer" 27) ("perl" "\\perl")
                     ("local-encoding" base64-encode-region)
                     ("local-decoding" base64-decode-region)
                     ("remote-encoding" tramp-perl-encode-with-module)
                     ("remote-decoding" tramp-perl-decode-with-module))
                    ([cl-struct-tramp-file-name "plink" "huangq" "10.150.59.52
"
                      "/home/huangq/.vimrc"]
                     ("file-directory-p" nil) ("file-exists-p" t)
                     ("file-attributes-integer"
                      (nil 1 1000 27 (17916 42687) (17915 30532) (17915 30532) 47 "-rw-r--r--" nil
                       50574 (-1 0))
                      )
                     ("file-truename" "/plink:
address@hidden:/home/huangq/.vimrc")
                     ("file-readable-p" t))
                    ("#<process *tramp/plink address@hidden>"
                     ("last-cmd-time" (17916 40534 578000)) ("chunksize" 0)
                     ("scripts" ("tramp_perl_encode_with_module")))
                    ([cl-struct-tramp-file-name "plink" "huangq" "10.150.59.52
" "/home"]
                     ("file-exists-p" t)
                     ("file-attributes-integer"
                      (t 3 0 0 (17916 42779) (17914 63026) (17914 63026) 4096 "drwxr-xr-x" t
                       618945 (-1 0))
                      )
                     )
                    ([cl-struct-tramp-file-name "plink" "huangq" "10.150.59.52
" "/home/huangq"]
                     ("file-exists-p" t)
                     ("file-attributes-integer"
                      (t 18 1000 1000 (17916 42781) (17916 33037) (17916 33037) 4096 "drwxr-xr-x"
                       t 49062 (-1 0))
                      )
                     )
                    )
 shell-prompt-pattern "^[^#$%>\n]*[#$%>] *"
 backup-by-copying nil
 backup-by-copying-when-linked nil
 backup-by-copying-when-mismatch nil
 backup-by-copying-when-privileged-mismatch 200
 password-cache t
 password-cache-expiry 16
 backup-directory-alist nil
 file-name-handler-alist '(("\\.Z\\(~\\|\\.~[0-9]+~\\)?\\'\\|\\.bz2\\'\\|\\.tbz\\'\\|\\.tgz\\'\\|\\.g?z\\(~\\|\\.~[0-9]+~\\)?\\'\\|\\.dz\\'" . jka-compr-handler)
                           ("^\\([a-zA-Z]:\\)?/$\\|^\\([a-zA-Z]:\\)?/[^/:][^/]*$" .
                            tramp-completion-file-name-handler)
                           ("\\`/[^/:]+:" . tramp-file-name-handler)
                           ("\\.\\(GIF\\|JP\\(?:E?G\\)\\|P\\(?:BM\\|GM\\|N[GM]\\|PM\\)\\|TIFF?\\|X\\(?:[BP]M\\)\\|gif\\|jp\\(?:e?g\\)\\|p\\(?:bm\\|gm\\|n[gm]\\|pm\\)\\|tiff?\\|x\\(?:[bp]m\\)\\)\\'" . image-file-handler)
                           ("^/or/[A-Za-z]/" . cygwin-mount-map-drive-hook-function)
                           ("^//[A-Za-z]/" . cygwin-mount-map-drive-hook-function)
                           ("^/[^:@]*$\\|^/|/[^/:]+\\(\\'\\|/\\)" .
                            cygwin-mount-name-hook-function)
                           ("\\`/:" . file-name-non-special))
 )

(setq
 buffer-name "*tramp/plink address@hidden"
 tramp-remote-path '("/bin" "/usr/bin" "/usr/sbin" "/usr/local/bin")
 )

This is a special notion of the `gnus/message' package.  If you
use another mail agent (by copying the contents of this buffer)
please ensure that the buffers are attached to your email.

<#part type="text/plain" encoding=base64 disposition=attachment buffer="*tramp/plink address@hidden" description="*tramp/plink 
address@hidden">
<#/part>