macos - Anaconda installer exits after unpacking payload and does not install anything

Question

As everyone, after the upgrade I couldn't use anaconda. At the end I erased everything and downloaded it again to install it from scratch. I am using Anaconda3-2020.11-MacOSX-x86_64.sh on Mac OS Catalina 10.15.7 During installation it says 'unpacking payload' and it extracts some files. After that, nothing happens, no error message, nothing.

If I go to /Users/Nebula/anaconda3/ there are only a few files. There is no bin folder.

Basically it is not installed at all. The same happens if I do it with the graphical installer.

___update:
I tried with bash and zsh, both the same. Then I tried with brew install anaconda and I get this error.

it doesn't install it either.

____update2:
I have been trying with several versions and I manage to install a version from 2018. However when I run conda it shows: An unexpected error has occurred.

____update3:
I have run it with bash -x Here is the output. At the end it seems it is trying to run conda.exe which is weird being a mac. It asks for y/N and it exits whether I answer yes or no.

Nebula@Infinitys-MacBook-Pro ~ % bash -x Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
+ unset DYLD_LIBRARY_PATH
+ echo Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
+ grep '.sh$'
+ '[' -n /bin/zsh ']'
+ RUNNING_SHELL=/bin/zsh
+ '[' -z /bin/zsh ']'
+ '[' '!' -f /bin/zsh ']'
+ '[' -z /bin/zsh ']'
+ '[' '!' -f /bin/zsh ']'
+++ dirname Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
++ DIRNAME=Downloads
++ cd Downloads
++ pwd
+ THIS_DIR=/Users/Nebula/Downloads
++ basename Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
+ THIS_FILE=Anaconda3-2020.11-MacOSX-x86_64.sh
+ THIS_PATH=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
+ PREFIX=/Users/Nebula/anaconda3
+ BATCH=0
+ FORCE=0
+ SKIP_SCRIPTS=0
+ TEST=0
+ REINSTALL=0
+ USAGE='
usage: Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh [options]

Installs Anaconda3 2020.11

-b           run install in batch mode (without manual intervention),
             it is expected the license terms are agreed upon
-f           no error if install prefix already exists
-h           print this help message and exit
-p PREFIX    install prefix, defaults to /Users/Nebula/anaconda3, must not contain spaces.
-s           skip running pre/post-link/install scripts
-u           update an existing installation
-t           run package tests after installation (may install conda-build)
'
+ which getopt
++ getopt bfhp:sut ''
+ OPTS=' -- '
+ '[' '!' 0 ']'
+ eval set -- ' -- '
++ set -- --
+ true
+ case "$1" in
+ shift
+ break
+ '[' 0 = 0 ']'
++ uname -m
+ '[' x86_64 '!=' x86_64 ']'
++ uname
+ '[' Darwin '!=' Darwin ']'
+ printf '
'

+ printf 'Welcome to Anaconda3 2020.11
'
Welcome to Anaconda3 2020.11
+ printf '
'

+ printf 'In order to continue the installation process, please review the license
'
In order to continue the installation process, please review the license
+ printf 'agreement.
'
agreement.
+ printf 'Please, press ENTER to continue
'
Please, press ENTER to continue
+ printf '>>> '
>>> + read -r dummy
Do you accept the license terms? [yes|no]
+ printf '[no] >>> '
[no] >>> + read -r ans
yes
+ '[' yes '!=' yes ']'
+ '[' yes '!=' yes ']'
+ printf '
'

+ printf 'Anaconda3 will now be installed into this location:
'
Anaconda3 will now be installed into this location:
+ printf '%s
' /Users/Nebula/anaconda3
/Users/Nebula/anaconda3
+ printf '
'

+ printf '  - Press ENTER to confirm the location
'
 - Press ENTER to confirm the location
+ printf '  - Press CTRL-C to abort the installation
'
 - Press CTRL-C to abort the installation
+ printf '  - Or specify a different location below
'
 - Or specify a different location below
+ printf '
'

+ printf '[%s] >>> ' /Users/Nebula/anaconda3
[/Users/Nebula/anaconda3] >>> + read -r user_prefix

+ '[' '' '!=' '' ']'
+ case "$PREFIX" in
+ '[' 0 = 0 ']'
+ '[' -e /Users/Nebula/anaconda3 ']'
+ '[' 0 = 1 ']'
+ mkdir -p /Users/Nebula/anaconda3
++ cd /Users/Nebula/anaconda3
++ pwd
+ PREFIX=/Users/Nebula/anaconda3
+ export PREFIX
+ printf 'PREFIX=%s
' /Users/Nebula/anaconda3
PREFIX=/Users/Nebula/anaconda3
++ tail -n +588 /Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh
++ md5
+ MD5=ffe6c79627482cbbc073b4d7509bacb2
+ echo ffe6c79627482cbbc073b4d7509bacb2
+ grep ffe6c79627482cbbc073b4d7509bacb2
+ cd /Users/Nebula/anaconda3
+ unset PYTHON_SYSCONFIGDATA_NAME _CONDA_PYTHON_SYSCONFIGDATA_NAME
+ CONDA_EXEC=/Users/Nebula/anaconda3/conda.exe
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=1 skip=27718 count=5050
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=16384 skip=2 count=903
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=1 skip=14827520 count=7405
+ chmod +x /Users/Nebula/anaconda3/conda.exe
+ export TMP_BACKUP=
+ TMP_BACKUP=
+ export TMP=/Users/Nebula/anaconda3/install_tmp
+ TMP=/Users/Nebula/anaconda3/install_tmp
+ printf 'Unpacking payload ...
'
Unpacking payload ...
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=1 skip=14834925 count=8979
+ /Users/Nebula/anaconda3/conda.exe constructor --extract-tar --prefix /Users/Nebula/anaconda3
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=16384 skip=906 count=26470
+ dd if=/Users/Nebula/Downloads/Anaconda3-2020.11-MacOSX-x86_64.sh bs=1 skip=448528384 count=4122
+ /Users/Nebula/anaconda3/conda.exe constructor --prefix /Users/Nebula/anaconda3 --extract-conda-pkgs
+ PRECONDA=/Users/Nebula/anaconda3/preconda.tar.bz2
+ /Users/Nebula/anaconda3/conda.exe constructor --prefix /Users/Nebula/anaconda3 --extract-tarball
+ rm -f /Users/Nebula/anaconda3/preconda.tar.bz2
+ PYTHON=/Users/Nebula/anaconda3/bin/python
+ MSGS=/Users/Nebula/anaconda3/.messages.txt
+ touch /Users/Nebula/anaconda3/.messages.txt
+ export FORCE
+ mkdir -p /Users/Nebula/.conda
+ CONDA_SAFETY_CHECKS=disabled
+ CONDA_EXTRA_SAFETY_CHECKS=no
+ CONDA_ROLLBACK_ENABLED=no
+ CONDA_CHANNELS=https://repo.anaconda.com/pkgs/main,https://repo.anaconda.com/pkgs/main,https://repo.anaconda.com/pkgs/r,https://repo.anaconda.com/pkgs/pro
+ CONDA_PKGS_DIRS=/Users/Nebula/anaconda3/pkgs
+ /Users/Nebula/anaconda3/conda.exe install --offline --file /Users/Nebula/anaconda3/pkgs/env.txt -yp /Users/Nebula/anaconda3
[y/N]: y
+ exit 1
Nebula@Infinitys-MacBook-Pro ~ %

Answer 1

SOLVED I finally solved it. I erased the .condarc and .conda folder in my home directory. Then I ran the installer again and it worked.

It seems that the problem was that everytime I was trying to reinstall anaconda I was only erasing the anaconda3 folder and not the files/folders hidden in the home directory which were causing the issue.