can't install mamba or libmamba

[Pete Jemian]

Cannot `conda install` mamba or libmamba into fresh installation of Anaconda3.  The solver fails.  Advice?

```bash

TARGET_DIR=~/Apps/anaconda3

INSTALLER= Anaconda3-2021.11-Linux-x86_64.sh

cd ~/Downloads

wget "https://repo.anaconda.com/miniconda/${INSTALLER}"

cd ~/Apps

bash ~/Downloads/"${INSTALLER}" -b -p "${TARGET_DIR}"

source "${TARGET_DIR}/bin/activate"

conda update -y conda  # Ok!

conda install mamba -n base -c conda-forge  # FAILS to solve

conda install libmamba -n base -c conda-forge  # FAILS to solve

```

Also, miniconda approach fails the same way:

```bash

TARGET_DIR=~/Apps/miniconda

INSTALLER=Miniconda3-latest-Linux-x86_64.sh

cd ~/Downloads

wget "https://repo.anaconda.com/miniconda/${INSTALLER}"

cd ~/Apps

bash ~/Downloads/"${INSTALLER}" -b -p "${TARGET_DIR}"

source "${TARGET_DIR}/bin/activate"

conda update -y conda

conda install mamba libmamba -n base -c conda-forge  # Ok!

conda install anaconda  # FAILS to solve

```

[Pete Jemian]

copy-paste error fixed below:

On 4/1/2022 12:31 PM, Pete Jemian wrote:
> ```bash
> TARGET_DIR=~/Apps/anaconda3
> INSTALLER= Anaconda3-2021.11-Linux-x86_64.sh
> cd ~/Downloads

> wget "https://repo.anaconda.com/archive/${INSTALLER}" # <-- typo fixed here