[Bug 1310279] Re: Enabling mpm_prefork: ERROR: Module mpm_itk is enabled - cannot proceed due to conflicts. It needs to be disabled first!

[Dan Lee]

Cant set up cups cos of this error; please fix

The following packages were automatically installed and are no longer required:
  foomatic-db-gutenprint ijsgutenprint libapreq2-3 libjbig-dev libjpeg-dev
  libjpeg-turbo8-dev libjpeg8-dev liblzma-dev libpng12-dev libtiff5-dev
  libtiffxx5
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  apache2-bin apache2-data
Suggested packages:
  apache2-doc apache2-suexec-pristine apache2-suexec-custom apache2-utils
The following NEW packages will be installed
  apache2 apache2-bin apache2-data
0 to upgrade, 3 to newly install, 0 to remove and 0 not to upgrade.
Need to get 0 B/1,127 kB of archives.
After this operation, 4,722 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Selecting previously unselected package apache2-bin.
(Reading database ... 240963 files and directories currently installed.)
Preparing to unpack .../apache2-bin_2.4.10-1ubuntu1_amd64.deb ...
Unpacking apache2-bin (2.4.10-1ubuntu1) ...
Selecting previously unselected package apache2-data.
Preparing to unpack .../apache2-data_2.4.10-1ubuntu1_all.deb ...
Unpacking apache2-data (2.4.10-1ubuntu1) ...
Selecting previously unselected package apache2.
Preparing to unpack .../apache2_2.4.10-1ubuntu1_amd64.deb ...
Unpacking apache2 (2.4.10-1ubuntu1) ...
Processing triggers for man-db (2.7.0.2-2) ...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Processing triggers for ufw (0.34~rc-0ubuntu4) ...
Setting up apache2-bin (2.4.10-1ubuntu1) ...
Setting up apache2-data (2.4.10-1ubuntu1) ...
Setting up apache2 (2.4.10-1ubuntu1) ...
ERROR: Module mpm_prefork is enabled - cannot proceed due to conflicts. It needs to be disabled first!
dpkg: error processing package apache2 (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 apache2
E: Sub-process /usr/bin/dpkg returned an error code (1)

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https://bugs.launchpad.net/bugs/1310279

Title:
  Enabling mpm_prefork: ERROR: Module mpm_itk is enabled - cannot
  proceed due to conflicts. It needs to be disabled first!

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