Receiving errors installing MSYS2, Installation failed: pacman failed. (I didn't choose option 3)

[arye-eidelman]

What problems are you experiencing?

Receiving errors installing MSYS2
MSYS2 system update failed
Installation failed: pacman failed

Steps to reproduce

Install rubyinstaller-2.4.3-1-x64.exe with all the default options
when the MSYS2 installer starts in the command prompt hit enter without choosing a number
when then the MSYS2 64bit Setup window opens keek everything at the default and continue

The console output is:

 _____       _           _____           _        _ _         ___
|  __ \     | |         |_   _|         | |      | | |       |__ \
| |__) |   _| |__  _   _  | |  _ __  ___| |_ __ _| | | ___ _ __ ) |
|  _  / | | | '_ \| | | | | | | '_ \/ __| __/ _` | | |/ _ \ '__/ /
| | \ \ |_| | |_) | |_| |_| |_| | | \__ \ || (_| | | |  __/ | / /_
|_|  \_\__,_|_.__/ \__, |_____|_| |_|___/\__\__,_|_|_|\___|_||____|
                    __/ |           _
                   |___/          _|_ _  __   | | o __  _| _     _
                                   | (_) |    |^| | | |(_|(_)\^/_>

   1 - MSYS2 base installation
   2 - MSYS2 system update
   3 - MSYS2 and MINGW development toolchain

Which components shall be installed? If unsure press ENTER [1,2,3]

MSYS2 seems to be unavailable
Download http://repo.msys2.org/distrib/x86_64/msys2-x86_64-20161025.exe
  to C:\Users\HP\AppData\Local\Temp/msys2-x86_64-20161025.exe
Downloading msys2-x86_64-20161025.exe (100%)
Verify integrity of msys2-x86_64-20161025.exe ... OK
Run the MSYS2 installer ...
> C:\Users\HP\AppData\Local\Temp/msys2-x86_64-20161025.exe
 Success
MSYS2 system update part 1  ...
> pacman -Syu --needed --noconfirm
:: Synchronizing package databases...
 mingw32                              382.8 KiB   667K/s 00:01 [#################################] 100%
 mingw32.sig                           96.0   B  0.00B/s 00:00 [#################################] 100%
 mingw64                              382.8 KiB   347K/s 00:01 [#################################] 100%
 mingw64.sig                           96.0   B  0.00B/s 00:00 [#################################] 100%
 msys                                 160.2 KiB  66.8K/s 00:02 [#################################] 100%
 msys.sig                              95.0   B  0.00B/s 00:00 [#################################] 100%
:: Starting core system upgrade...
warning: terminate other MSYS2 programs before proceeding
resolving dependencies...
looking for conflicting packages...
:: msys2-runtime and catgets are in conflict. Remove catgets? [y/N]
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: msys2-runtime and catgets are in conflict
MSYS2 system update failed
Installation failed: pacman failed

   1 - MSYS2 base installation
   2 - MSYS2 system update
   3 - MSYS2 and MINGW development toolchain

Which components shall be installed? If unsure press ENTER []

What's the output from ridk version?

ruby:
  path: C:/Ruby24-x64
  version: 2.4.3
  platform: x64-mingw32
ruby_installer:
  package_version: 2.4.3-1
  git_commit: 36aac73
msys2:
  path: C:\msys64
  title: MSYS2 64bit
  version: '20161025'
sh: GNU bash, version 4.3.46(2)-release (x86_64-pc-msys)
os: Microsoft Windows [Version 10.0.16299.248]

in a previes attempt it was slightly different

ruby:
  path: C:/Ruby24-x64
  version: 2.4.3
  platform: x64-mingw32
ruby_installer:
  package_version: 2.4.3-1
  git_commit: 36aac73
msys2:
  path: C:\msys64
  title: MSYS2 64bit
  version: '20161025'
cc: x86_64-w64-mingw32-gcc (Rev1, Built by MSYS2 project) 7.3.0
sh: GNU bash, version 4.3.46(2)-release (x86_64-pc-msys)
os: Microsoft Windows [Version 10.0.16299.248]

[larskanis]

I'll fix this issue in the next release. You can work around by:

ridk exec pacman -Rdd catgets libcatgets --noconfirm
ridk install 2 3

[arye-eidelman]

thanks it's working now

[larskanis]

This issue is still in discussion on MSYS2. For the time being I have updated RubyInstaller to 2.5.0-2 and 2.4.3-2, which add a workaround for this issue, so that fresh installations shouldn't fail any longer.

[rolfedh]

I just ran into this issue. Malwarebytes blocked packman.exe as ransomware. Malwarebytes has this flagged as a false positive on their website. I set an exclusion for this file in Malwarebytes and relaunched RubyIntaller to try to reinstall MSYS. However, MSYS kept reporting "Installation failed: pacman failed". The solution was to delete \var\lib\pacman\db.lck (e.g., C:\msys64\var\lib\pacman\var\lib\pacman\db.lck) and then rerun the installer.

[adi23-11]

this error occur while installing apk in wsapacman ,

the installation has failed , but no error was thrown