\subsection{E0001 -- Bad characters in file
name}\label{e0001--bad-characters-in-file-name}

File name should not contain non-ascii characters. Additionally, file
names should not contain control characters or other characters which
may have a special meaning for UNIX shells.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#nounixspecialcharacters}

\subsection{E0002 -- File Permissions}\label{e0002--file-permissions}

Files submitted to CTAN should be world readable.

Binaries should have the x-bit set.

Scripts with a shebang may have the x-bit set but this is not required.

The same for Windows command files which are files ending in one of
\texttt{.bat}, \texttt{.cmd}, \texttt{.ps1}, \texttt{.nsh} or
\texttt{.reg}. x-bit may be set but is not required.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#filepermissions}

\subsection{E0003 -- README is not a text
file}\label{e0003--readme-is-not-a-text-file}

The \texttt{README} file specified in the error message must be a text
file but it isn\textquotesingle t.

\subsection{E0004 -- Empty directory not
allowed}\label{e0004--empty-directory-not-allowed}

Empty directories are considered as rubbish, and are usually not
accepted as part of a package, neither in the package tree nor in the
TDS zip archive.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#noemptyfiles}

\subsection{E0005 -- Empty files not
allowed}\label{e0005--empty-files-not-allowed}

Empty files are considered as rubbish, and are usually not accepted as
part of a package.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#noemptyfiles}

\subsection{E0006 -- Hidden directories not
allowed}\label{e0006--hidden-directories-not-allowed}

A package should not contain hidden directories, neither in the package
tree nor in the TDS zip archive.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#noauxfiles}

\subsection{E0007 -- Hidden files not
allowed}\label{e0007--hidden-files-not-allowed}

A package should not contain hidden files, neither in the package tree
nor in the TDS zip archive.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#noauxfiles}

\subsection{E0008 -- Temporary file
detected}\label{e0008--temporary-file-detected}

A temporary file was detected. These are typically files created by TeX
\& friends and should not be part of a package.

Temporary files will also be detected in a TDS zip archive.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#noauxfiles}

\subsection{E0009 -- Package doesn\textquotesingle t contain a README
file}\label{e0009--package-doesnt-contain-a-readme-file}

A package must contain at least one of \texttt{README},
\texttt{README.md} or \texttt{README.txt} file.

For more details refer to:\\
\url{https://mirrors.ibiblio.org/CTAN/help/ctan/CTAN-upload-addendum.html\#readme}

\subsection{E0010 -- Broken symlink
detected}\label{e0010--broken-symlink-detected}

A broken symlink was detected.

\subsection{E0011 -- Wrong permission for
directory}\label{e0011--wrong-permission-for-directory}

Directories should have rwx for the owner and at least \texttt{r-x} for
others (i.e. world readable).

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#filepermissions}

\subsection{E0012 -- CRLF line endings
detected}\label{e0012--crlf-line-endings-detected}

The file specified in the error message contains CRLF line endings. Text
files should have UNIX style line endings.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#crlf}

\subsection{E0013 -- Socket special fie
detected}\label{e0013--socket-special-fie-detected}

The file specified in the error message is a socket special file which
is not allowed.

\subsection{E0014 -- Fifo special file
detected}\label{e0014--fifo-special-file-detected}

The file specified in the error message is a fifo special file which is
not allowed.

\subsection{E0015 -- Block device file
detected}\label{e0015--block-device-file-detected}

The file specified in the error message is a block device file which is
not allowed.

\subsection{E0016 -- Character device file
detected}\label{e0016--character-device-file-detected}

The file specified in the error message is a character device file which
is not allowed.

\subsection{E0017 -- PDF document is in
error}\label{e0017--pdf-document-is-in-error}

The PDF document mentioned in the message is in error.

Example:

\begin{verbatim}
I0002   Checking package files in directory somepkg
E0017   PDF error detected in somepkg/sompkg.pdf

Error opening "tests/e0017/somepkg/somepkg.pdf": Parse(InvalidTrailer)
\end{verbatim}

\subsection{E0018 -- Unwanted directory
detected}\label{e0018--unwanted-directory-detected}

A directory was detected which should not be part of a package. Example:
\texttt{\_\_MACOSX}

\subsection{E0019 -- Generated file
detected}\label{e0019--generated-file-detected}

In order to avoid redundancy we don\textquotesingle t want to have
included files in a package which easily can be generated from other
files in the submission.

Exceptions are the \texttt{README} files of the package, i.e.
\texttt{README}, \texttt{README.md} or \texttt{README.txt},
\texttt{.pdf}, \texttt{.html}, or \texttt{.css} files. If a
\texttt{.ins} file is a generated file it also will be accepted.

\texttt{pkgcheck} detects generated files anywhere in the package
directory tree.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#nogeneratedfiles}

\subsection{E0020 -- Unwanted directory detected in the top level
directory in TDS zip
archive}\label{e0020--unwanted-directory-detected-in-the-top-level-directory-in-tds-zip-archive}

The name of a top level directory of a TDS archive must be one of those
listed here: \texttt{asymptote}, \texttt{bibtex}, \texttt{chktex},
\texttt{context}, \texttt{doc}, \texttt{dvipdfmx}, \texttt{dvips},
\texttt{fonts}, \texttt{hbf2gf}, \texttt{makeindex}, \texttt{metafont},
\texttt{metapost}, \texttt{mft}, \texttt{omega}, \texttt{pbibtex},
\texttt{psutils}, \texttt{scripts}, \texttt{source}, \texttt{tex},
\texttt{tex4ht}, \texttt{texconfig}, \texttt{texdoc}, \texttt{texdoctk},
\texttt{ttf2pk}, \texttt{web2c}, \texttt{xdvi}, \texttt{xindy},

Any other other directory at the top level is an error.

\subsection{E0021 -- Error when reading a
file}\label{e0021--error-when-reading-a-file}

An error was encountered when reading the file specified in the message.

\subsection{E0022 -- Check of an URL in a README file
failed}\label{e0022--check-of-an-url-in-a-readme-file-failed}

URL checking is in effect. An error occcurred when trying to retrieve an
URL which was found in the specified \texttt{README} file.

\subsection{E0023 -- Follow up error when trying to read a directory
with insufficient
permissions}\label{e0023--follow-up-error-when-trying-to-read-a-directory-with-insufficient-permissions}

Error which is a follow-up error. For instance, when a directory could
not be read.

\subsection{E0024 -- TDS zip archive has wrong
permissions}\label{e0024--tds-zip-archive-has-wrong-permissions}

The TDS zip archive should have at least \texttt{r-\/-} for the owner
and at least \texttt{r-\/-} for others (i.e. world readable).

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#filepermissions}

\subsection{E0025 -- Duplicate names when ignoring letter case for files
or
directories}\label{e0025--duplicate-names-when-ignoring-letter-case-for-files-or-directories}

As there are operating systems which do not distinguish between
\texttt{myfile} and \texttt{MYFILE} we don\textquotesingle t want to
have file names in a directory which are the same after converting to
lower case.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#filenames}

\subsection{E0026 -- Files not in TDS or different in TDS and
non-install
tree}\label{e0026--files-not-in-tds-or-different-in-tds-and-non-install-tree}

The file mentioned in the error message is either not existing in the
TDS zip archive, or it is different to the one in the non-install tree.

\subsection{E0027 -- An I/O error
occurred}\label{e0027--an-io-error-occurred}

Some kind of I/O error occurred. If you believe there is an error in
\texttt{pkgcheck} please contact the author.

\subsection{E0028 -- A path name in a TDS zip archive must contain the
package
name}\label{e0028--a-path-name-in-a-tds-zip-archive-must-contain-the-package-name}

The path names in a TDS zip archive must contain the package name.

\textbf{Example:} Assume a package \texttt{somepkg}. Then path names
should look like follows:

\begin{verbatim}
tex/latex/somepkg/somepkg.cls
doc/latex/somepkg/README
source/latex/somepkg/somepkg.dtx
...
\end{verbatim}

\section{\texorpdfstring{E0029 -- README file: encoding with BOM
detected}{E0029 -- README file:  encoding with BOM detected}}\label{e0029--readme-file--encoding-with-bom-detected}

A README file should be either ASCII or UTF-8 without BOM(byte order
mark)

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#readme}

\subsection{E0030 -- A symlink was found which points outside of the
package directory
tree}\label{e0030--a-symlink-was-found-which-points-outside-of-the-package-directory-tree}

A symlink must not point to a file or directory outside of the package
directory tree.

\subsection{E0031 -- File name contains invalid UTF-8
character(s)}\label{e0031--file-name-contains-invalid-utf-8-characters}

A file name contains invalid UTF-8 character(s).

\subsection{E0032 -- Extension expects some file type but got another
type}\label{e0032--extension-expects-some-file-type-but-got-another-type}

The error shows up when the file has a known extension (e.g.,
\texttt{.pdf}) and the detected type doesn\textquotesingle t match. The
extension is what drove the expectation.

Example:

\begin{verbatim}
extension .pdf expects PDF, got Text (LF)
\end{verbatim}

\subsection{E0034 -- Unwanted file detected in the top level directory
in TDS zip
archive}\label{e0034--unwanted-file-detected-in-the-top-level-directory-in-tds-zip-archive}

A top level directory of a TDS archive should only contain certain
directories but no files.

\subsection{E0035 -- Unwanted TDS archive detected in package directory
tree}\label{e0035--unwanted-tds-archive-detected-in-package-directory-tree}

A package directory should not contain a TDS zip archive.

\subsection{E0036 -- .dtx/.ins files found in wrong directory in TDS zip
archive}\label{e0036--dtxins-files-found-in-wrong-directory-in-tds-zip-archive}

In a TDS zip archive a \texttt{.dtx} resp. \texttt{.ins} file must be in
a subdirectory of either of \texttt{source/} or \texttt{doc/} top level
directories.

\subsection{E0037 -- CR line endings
detected}\label{e0037--cr-line-endings-detected}

The file specified in the error message contains CR line endings. Text
files should have UNIX style line endings.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#crlf}

\subsection{E0038 -- File has inconsistent line endings: CR: x, LF: y,
CRLF:
z}\label{e0038--file-has-inconsistent-line-endings-cr-x-lf-y-crlf-z}

The file specified in the error message contains CR line endings. Text
files should have UNIX style line endings.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#crlf}

\subsection{E0039 -- No doc/ directory found in the top level directory
of the TDS zip
archive}\label{e0039--no-doc-directory-found-in-the-top-level-directory-of-the-tds-zip-archive}

A TDS zip archive is required to contain a top level directory
\texttt{doc/}.

\subsection{E0040 -- Too few top level directories in the TDS zip
archive}\label{e0040--too-few-top-level-directories-in-the-tds-zip-archive}

The top level directory of a TDS zip archive must contain at least a
\texttt{doc} directory and one or more of the following directories:
\texttt{asymptote}, \texttt{bibtex}, \texttt{chktex}, \texttt{context},
\texttt{dvipdfmx}, \texttt{dvips}, \texttt{fonts}, \texttt{hbf2gf},
\texttt{makeindex}, \texttt{metafont}, \texttt{metapost}, \texttt{mft},
\texttt{omega}, \texttt{pbibtex}, \texttt{psutils}, \texttt{scripts},
\texttt{source}, \texttt{tex}, \texttt{tex4ht}, \texttt{texconfig},
\texttt{texdoc}, \texttt{texdoctk}, \texttt{ttf2pk}, \texttt{web2c},
\texttt{xdvi}, \texttt{xindy},

Any other other directory at the top level is an error.

\subsection{E0041 -- One or more map file found for the package but none
of them is in a path starting with
fonts/map/dvips}\label{e0041--one-or-more-map-file-found-for-the-package-but-none-of-them-is-in-a-path-starting-with-fontsmapdvips}

At least one map file was found which was not in a path starting with
\texttt{fonts/map/dvips}.

\subsection{E0042 -- TDS zip archive: duplicate names when ignoring
letter case for files or
directories}\label{e0042--tds-zip-archive-duplicate-names-when-ignoring-letter-case-for-files-or-directories}

As there are operating systems which do not distinguish between
\texttt{myfile} and \texttt{MYFILE} we don\textquotesingle t want to
have file names in a directory which are the same after converting to
lower case.

For more details refer to:\\
\url{https://mirror.ctan.org/help/ctan/CTAN-upload-addendum.html\#filenames}

\subsection{\texorpdfstring{E0043 -- Symlink found in TDS zip
archive}{E0043 -- Symlink  found in TDS zip archive}}\label{e0043--symlink--found-in-tds-zip-archive}

The TDS zip archive contained a symlink which is not allowed.