Error ocurring whileprocessing some packages.

What is the output of:

sudo apt-get update; sudo apt-get install lib32z1-dev

Thanks

suod apt-get update gave an error-
W: Failed to fetch cdrom://Ubuntu 15.10 _Wily Werewolf_ - Release amd64
(20151021)/dists/wily/main/binary-amd64/Packages Please use apt-cdrom to
make this CD-ROM recognized by APT. apt-get update cannot be used to add
new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 15.10 _Wily Werewolf_ - Release amd64
(20151021)/dists/wily/restricted/binary-amd64/Packages Please use
apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be
used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 15.10 _Wily Werewolf_ - Release amd64
(20151021)/dists/wily/main/binary-i386/Packages Please use apt-cdrom to
make this CD-ROM recognized by APT. apt-get update cannot be used to add
new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 15.10 _Wily Werewolf_ - Release amd64
(20151021)/dists/wily/restricted/binary-i386/Packages Please use apt-cdrom
to make this CD-ROM recognized by APT. apt-get update cannot be used to add
new CD-ROMs

E: Some index files failed to download. They have been ignored, or old ones
used instead.
----------------------------------------------------------------------------------------------------------------------------------

On Sun, Apr 10, 2016 at 9:52 PM, actionparsnip <
<email address hidden>> wrote:

> Your question #290379 on zlib in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> Status: Open => Needs information
>
> actionparsnip requested more information:
> What is the output of:
>
> sudo apt-get update; sudo apt-get install lib32z1-dev
>
> Thanks
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> You received this question notification because you asked the question.
>

You have to disable the installation DVD as a source for installing software.

Use the system settings - software dialogue to untick the installation CD on the first or second tabs

see http://itsfoss.com/wp-content/uploads/2015/02/CDROM_Error_Update_Software_Sources.jpeg and http://i.stack.imgur.com/dhCUh.png

Then try running the commands

sudo apt-get update; sudo apt-get install lib32z1-dev

again and copy/paste the full output that we can check.

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer
required:
  linux-headers-4.2.0-16 linux-headers-4.2.0-16-generic
  linux-image-4.2.0-16-generic linux-image-extra-4.2.0-16-generic
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  lib32z1-dev
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
103 not fully installed or removed.
Need to get 0 B/54.7 kB of archives.
After this operation, 188 kB of additional disk space will be used.
(Reading database ... 252437 files and directories currently installed.)
Preparing to unpack .../lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb ...
Unpacking lib32z1-dev (1:1.2.8.dfsg-2ubuntu4) ...
dpkg: error processing archive
/var/cache/apt/archives/lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb
(--unpack):
 trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also
in package zlib1g-dev:i386 1:1.2.8.dfsg-2ubuntu4
Errors were encountered while processing:
 /var/cache/apt/archives/lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
kruti@kruti-VirtualBox:~$ sudo apt-get install lib32z1-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer
required:
  linux-headers-4.2.0-16 linux-headers-4.2.0-16-generic
  linux-image-4.2.0-16-generic linux-image-extra-4.2.0-16-generic
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  lib32z1-dev
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
103 not fully installed or removed.
Need to get 0 B/54.7 kB of archives.
After this operation, 188 kB of additional disk space will be used.
(Reading database ... 252437 files and directories currently installed.)
Preparing to unpack .../lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb ...
Unpacking lib32z1-dev (1:1.2.8.dfsg-2ubuntu4) ...
dpkg: error processing archive
/var/cache/apt/archives/lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb
(--unpack):
 trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also
in package zlib1g-dev:i386 1:1.2.8.dfsg-2ubuntu4
Errors were encountered while processing:
 /var/cache/apt/archives/lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

On Mon, Apr 11, 2016 at 9:38 PM, Manfred Hampl <
<email address hidden>> wrote:

> Your question #290379 on zlib in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> Status: Open => Needs information
>
> Manfred Hampl requested more information:
> You have to disable the installation DVD as a source for installing
> software.
>
> Use the system settings - software dialogue to untick the installation
> CD on the first or second tabs
>
> see http://itsfoss.com/wp-
> content/uploads/2015/02/CDROM_Error_Update_Software_Sources.jpeg and
> http://i.stack.imgur.com/dhCUh.png
>
> Then try running the commands
>
> sudo apt-get update; sudo apt-get install lib32z1-dev
>
> again and copy/paste the full output that we can check.
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> You received this question notification because you asked the question.
>

This is a known bug 1512992

Try the command

sudo apt-get -o Dpkg::Options::="--force-overwrite" install lib32z1-dev

and report the result

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer
required:
  linux-headers-4.2.0-16 linux-headers-4.2.0-16-generic
  linux-image-4.2.0-16-generic linux-image-extra-4.2.0-16-generic
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  lib32z1-dev
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
103 not fully installed or removed.
Need to get 0 B/54.7 kB of archives.
After this operation, 188 kB of additional disk space will be used.
(Reading database ... 252437 files and directories currently installed.)
Preparing to unpack .../lib32z1-dev_1%3a1.2.8.dfsg-2ubuntu4_amd64.deb ...
Unpacking lib32z1-dev (1:1.2.8.dfsg-2ubuntu4) ...
dpkg: warning: overriding problem because --force enabled:
dpkg: warning: trying to overwrite '/usr/include/i386-linux-gnu/zconf.h',
which is also in package zlib1g-dev:i386 1:1.2.8.dfsg-2ubuntu4
Setting up ant (1.9.6-1ubuntu1) ...
Setting up ant-optional (1.9.6-1ubuntu1) ...
Setting up libbsh-java (2.0b4-15ubuntu0.15.10.1) ...
Setting up libjline-java (1.0-2) ...
Setting up bsh (2.0b4-15ubuntu0.15.10.1) ...
Setting up lib32stdc++-5-dev (5.2.1-22ubuntu2) ...
Setting up libx32stdc++-5-dev (5.2.1-22ubuntu2) ...
Setting up g++-5-multilib (5.2.1-22ubuntu2) ...
Setting up g++-multilib (4:5.2.1-3ubuntu1) ...
Setting up junit (3.8.2-8build1) ...
Setting up libhamcrest-java (1.3-5ubuntu1) ...
Setting up junit4 (4.12-2ubuntu1) ...
Setting up lib32readline6 (6.3-8ubuntu1) ...
Setting up lib32readline6-dev (6.3-8ubuntu1) ...
Setting up libapache-pom-java (10-2build1) ...
Setting up libasm3-java (3.3.2-2) ...
Setting up libasm4-java (5.0.4-1) ...
Setting up libatinject-jsr330-api-java (1.0+ds1-2) ...
Setting up libgeronimo-interceptor-3.0-spec-java (1.0.1-2fakesync1) ...
Setting up libservlet3.1-java (8.0.26-1) ...
Setting up libcdi-api-java (1.0-2) ...
Setting up libcglib3-java (3.1+dfsg-1) ...
Setting up libclassworlds-java (1.1-final-5) ...
Setting up libcommons-lang-java (2.6-5ubuntu1) ...
Setting up libcommons-cli-java (1.3.1-2ubuntu1) ...
Setting up libcommons-codec-java (1.10-1) ...
Setting up libcommons-parent-java (22-2build1) ...
Setting up libcommons-logging-java (1.2-1ubuntu1) ...
Setting up libcommons-httpclient-java (3.1-11ubuntu1) ...
Setting up libcommons-io-java (2.4-2) ...
Setting up libcommons-net2-java (2.2-2) ...
Setting up libjaxen-java (1.1.6-1ubuntu1) ...
Setting up libxpp2-java (2.1.10-7build1) ...
Setting up libxpp3-java (1.1.4c-2build1) ...
Setting up libdom4j-java (1.6.1+dfsg.3-2ubuntu1) ...
Setting up libhttpcore-java (4.4.1-1) ...
Setting up libhttpclient-java (4.4.1-1) ...
Setting up libjaxp1.3-java (1.3.05-2ubuntu3) ...
Setting up libxml-commons-resolver1.1-java (1.2-7build1) ...
Setting up libxml-commons-external-java (1.4.01-2build1) ...
Setting up libxerces2-java (2.11.0-7) ...
Setting up libxalan2-java (2.7.1-9) ...
Setting up libplexus-interpolation-java (1.21-1) ...
Setting up libplexus-utils-java (1:1.5.15-4) ...
Setting up libdoxia-core-java (1.1.4-3ubuntu1) ...
Setting up libobjenesis-java (2.1-2) ...
Setting up libeasymock-java (3.3.1+ds-3) ...
Setting up libslf4j-java (1.7.12-2) ...
Setting up libjsch-java (0.1.53-1ubuntu1) ...
Setting up libjsoup-java (1.8.3-1) ...
Setting up libjsr305-java (0.1~+svn49-9) ...
Setting up libguava-java (18.0-4ubuntu1) ...
Setting up libplexus-classworlds-java (1.5.0-5) ...
Setting up libxbean-java (4.3-2) ...
Setting up libplexus-containers-java (1.0~beta3.0.7-7) ...
Setting up libplexus-interactivity-api-java (1.0-alpha-6-7) ...
Setting up libwagon-java (1.0.0-7) ...
Setting up libeclipse-aether-java (1.0.2-1) ...
Setting up libganymed-ssh2-java (250-2) ...
Setting up libaopalliance-java (20070526-5) ...
Setting up libguice-java (4.0~beta5-1) ...
Setting up libjackrabbit-java (2.10.1-1) ...
Setting up libjdom1-java (1.1.3-1) ...
Setting up libservlet2.5-java (6.0.41-4) ...
Setting up libjetty-java (6.1.26-5) ...
Setting up libjna-jni (4.2.0-1) ...
Setting up libjna-java (4.2.0-1) ...
Setting up libjna-platform-java (4.2.0-1) ...
Setting up libjsch-agent-proxy-java (0.0.8-2) ...
Setting up liblog4j1.2-java (1.2.17-6ubuntu1) ...
Setting up libmaven-parent-java (21-2) ...
Setting up libplexus-container-default-java (1.0-alpha-9-stable-1-7) ...
Setting up libplexus-ant-factory-java (1.0~alpha2.1-3) ...
Setting up libplexus-io-java (1.0~alpha5-2) ...
Setting up libplexus-archiver-java (2.2-1) ...
Setting up libplexus-bsh-factory-java (1.0~alpha7-3) ...
Setting up libplexus-cipher-java (1.7-1) ...
Setting up libplexus-sec-dispatcher-java (1.3.1-6) ...
Setting up libmaven2-core-java (2.2.1-22) ...
Setting up libnetbeans-cvsclient-java (6.5-2) ...
Setting up libregexp-java (1.5-3build1) ...
Setting up libmaven-scm-java (1.3-5) ...
Setting up libplexus-classworlds2-java (2.5.2-1) ...
Setting up libplexus-cli-java (1.2-5) ...
Setting up libplexus-utils2-java (3.0.15-1) ...
Setting up libqdox-java (1.12-1build1) ...
Setting up libplexus-containers1.5-java (1.5.5-6) ...
Setting up libsisu-guice-java (3.2.4-1) ...
Setting up libsisu-inject-java (0.3.1-2) ...
Setting up libsisu-plexus-java (0.3.1-2) ...
Setting up libwagon2-java (2.7-1) ...
Setting up libmaven3-core-java (3.3.3-3) ...
Setting up libwxbase2.8-0:amd64 (2.8.12.1+dfsg2-2ubuntu2) ...
Setting up wx2.8-headers (2.8.12.1+dfsg2-2ubuntu2) ...
Setting up libwxbase2.8-dev (2.8.12.1+dfsg2-2ubuntu2) ...
Setting up libwxgtk2.8-0:amd64 (2.8.12.1+dfsg2-2ubuntu2) ...
Setting up libwxgtk2.8-dev (2.8.12.1+dfsg2-2ubuntu2) ...
Setting up libxml2-utils (2.9.2+zdfsg1-4ubuntu0.3) ...
Setting up libxom-java (1.2.10-1) ...
Setting up maven (3.3.3-3) ...
update-alternatives: using /usr/share/maven/bin/mvn to provide /usr/bin/mvn
(mvn) in auto mode
Setting up xsltproc (1.1.28-2build2) ...
Setting up liblz4-1:amd64 (0.0~r131-1) ...
Setting up liblz4-tool (0.0~r131-1) ...
Setting up lib32z1-dev (1:1.2.8.dfsg-2ubuntu4) ...
Processing triggers for libc-bin (2.21-0ubuntu4.1) ...

On Mon, Apr 11, 2016 at 11:02 PM, Manfred Hampl <
<email address hidden>> wrote:

> Your question #290379 on zlib in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> Status: Open => Answered
>
> Manfred Hampl proposed the following answer:
> This is a known bug 1512992
>
> Try the command
>
> sudo apt-get -o Dpkg::Options::="--force-overwrite" install lib32z1-dev
>
> and report the result
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
>
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379/+confirm?answer_id=4
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+source/zlib/+question/290379
>
> You received this question notification because you asked the question.
>

Thanks Manfred Hampl, that solved my question.