open-hook: unknown command

[nanooq at nanooq.org]

Hello all,

I am a fan of the solarized color theme. The one I found needed slang, 
therefore I "apt-get remove"-d mutt and compiled slang and mutt locally. 
Now I do get these errror when starting mutt:


Error in /home/user1/.mutt/mutt-systemfile, line 43: 
ssl_ca_certificates_file: unknown variable
Error in /etc/Muttrc.d/compressed-folders.rc, line 2: open-hook: unknown 
command
Error in /etc/Muttrc.d/compressed-folders.rc, line 3: close-hook: 
unknown command
Error in /etc/Muttrc.d/compressed-folders.rc, line 4: append-hook: 
unknown command
Error in /etc/Muttrc.d/compressed-folders.rc, line 5: open-hook: unknown 
command
Error in /etc/Muttrc.d/compressed-folders.rc, line 6: close-hook: 
unknown command
Error in /etc/Muttrc.d/compressed-folders.rc, line 7: append-hook: 
unknown command
Error in /etc/Muttrc.d/compressed-folders.rc, line 8: open-hook: unknown 
command
Error in /etc/Muttrc.d/compressed-folders.rc, line 9: close-hook: 
unknown command
Error in /etc/Muttrc.d/compressed-folders.rc, line 10: append-hook: 
unknown command
Error in /usr/lib/mutt/source-muttrc.d|, line 3: source: errors in 
/etc/Muttrc.d/compressed-folders.rc
Error in /etc/Muttrc.d/sidebar.rc, line 4: ifdef: unknown command
Error in /usr/lib/mutt/source-muttrc.d|, line 5: source: errors in 
/etc/Muttrc.d/sidebar.rc
Error in /home/user1/.mutt/mutt-systemfile, line 132: source: errors in 
/usr/lib/mutt/source-muttrc.d|
Error in /home/user1/.mutt/mutt-systemfile, line 135: header_cache: 
unknown variable
Error in /home/user1/.mutt/muttrc, line 4: source: errors in 
/home/lora/.mutt/mutt-systemfile
Error in /home/user1/.mutt/mutt-localfile, line 23: header_cache: 
unknown variable
Error in /home/user1/.mutt/muttrc, line 5: source: errors in 
/home/lora/.mutt/mutt-localfile

I had a look at /etc/Muttrc.d/compressed-folders.rc, it seems to be a 
very fundamental file. The sidebar has not yet been installed, 
nevertheless unknown variables such as header_cache suprise me.

This is mutt -v output:

Mutt 1.5.24 (2015-08-30)
Copyright (C) 1996-2009 Michael R. Elkins and others.
Mutt comes with ABSOLUTELY NO WARRANTY; for details type `mutt -vv'.
Mutt is free software, and you are welcome to redistribute it
under certain conditions; type `mutt -vv' for details.

System: Linux 3.19.0-49-generic (x86_64)
slang: 20204

Compiler:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 
4.8.4-2ubuntu1~14.04.1' 
--with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs 
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr 
--program-suffix=-4.8 --enable-shared --enable-linker-build-id 
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix 
--with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib 
--enable-nls --with-sysroot=/ --enable-clocale=gnu 
--enable-libstdcxx-debug --enable-libstdcxx-time=yes 
--enable-gnu-unique-object --disable-libmudflap --enable-plugin 
--with-system-zlib --disable-browser-plugin --enable-java-awt=gtk 
--enable-gtk-cairo 
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre 
--enable-java-home 
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 
--with-arch-directory=amd64 
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc 
--enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 
--with-multilib-list=m32,m64,mx32 --with-tune=generic 
--enable-checking=release --build=x86_64-linux-gnu 
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.1)

Configure options: '--with-slang=/usr/local/bin/slsh' '--enable-imap' 
'--with-gss' '--with-ssl' '--with-sasl' '--with-regex' 
'--enable-nfs-fix'

Compilation CFLAGS: -Wall -pedantic -Wno-long-long -g -O2

Compile options:
-DOMAIN
-DEBUG
-HOMESPOOL  +USE_SETGID  +USE_DOTLOCK  +DL_STANDALONE  +USE_FCNTL  
-USE_FLOCK
-USE_POP  +USE_IMAP  -USE_SMTP
+USE_SSL_OPENSSL  -USE_SSL_GNUTLS  +USE_SASL  +USE_GSS  
+HAVE_GETADDRINFO
-HAVE_REGCOMP  +USE_GNU_REGEX
+HAVE_COLOR  -HAVE_START_COLOR  -HAVE_TYPEAHEAD  -HAVE_BKGDSET
-HAVE_CURS_SET  -HAVE_META  -HAVE_RESIZETERM
+CRYPT_BACKEND_CLASSIC_PGP  +CRYPT_BACKEND_CLASSIC_SMIME  
-CRYPT_BACKEND_GPGME
-EXACT_ADDRESS  -SUN_ATTACHMENT
+ENABLE_NLS  -LOCALES_HACK  +HAVE_WC_FUNCS  +HAVE_LANGINFO_CODESET  
+HAVE_LANGINFO_YESEXPR
+HAVE_ICONV  -ICONV_NONTRANS  -HAVE_LIBIDN  +HAVE_GETSID  -USE_HCACHE
-ISPELL
SENDMAIL="/usr/sbin/sendmail"
MAILPATH="/var/mail"
PKGDATADIR="/usr/local/share/mutt"
SYSCONFDIR="/usr/local/etc"
EXECSHELL="/bin/sh"
-MIXMASTER
To contact the developers, please mail to <mutt-dev at mutt.org>.
To report a bug, please visit http://bugs.mutt.org/.

How do I get rid of these error messages?

Thank you in advance,

nanooq