EDIT: SOLUTION

As @rpolicastro said, the problem had to do with the conda channels. The solution for me was:

    conda create -n cutadapt -c conda-forge -c bioconda cutadapt python=3.9

ORIGINAL POST

Hello everyone

I'm having trouble installing cutadapt. 

I just installed conda and created a new environment for cutapdat with a specific python version (since it send me a message before about that).

    conda create -n cutadapt python=3.9

When I enter the command `conda install -c bioconda cutadapt` the following message appears

```
UnsatisfiableError: The following specifications were found to be incompatible with each other:

Output in format: Requested package -> Available versionsThe following specifications were found to be incompatible with your system:

  - feature:/linux-64::__glibc==2.35=0
  - feature:|@/linux-64::__glibc==2.35=0
  - cutadapt -> libgcc-ng[version='>=9.3.0'] -> __glibc[version='>=2.17']

Your installed version is: 2.35
```

But when I run `conda list` in my cutadapt environment to see the packages it says:

```
packages in environment at /home/camila/miniconda3/envs/cutadapt:

Name                    Version                   Build  Channel
_libgcc_mutex             0.1                        main  
_openmp_mutex             4.5                       1_gnu   
ca-certificates           2022.4.26            h06a4308_0   
certifi   2021.10.8        py39h06a4308_2   
ld_impl_linux-64          2.35.1               h7274673_9   
libffi                    3.3                  he6710b0_2 

libgcc-ng                 9.3.0               h5101ec6_17   
libgomp   9.3.0               h5101ec6_17   
libstdcxx-ng              9.3.0               hd4cf53a_17   
ncurses                   6.3                 h7f8727e_2   
openssl                   1.1.1o               h7f8727e_0
pip                       21.2.4           py39h06a4308_0   
python    3.9.12               h12debd9_0   
readline                  8.1.2                h7f8727e_1    
setuptools                61.2.0           py39h06a4308_0
sqlite                    3.38.3               hc218d9a_0   
tk        8.6.11               h1ccaba5_1   
tzdata                    2022a                hda174b7_0   
wheel                     0.37.1             pyhd3eb1b0_0
xz                        5.2.5                h7f8727e_1   
zlib      1.2.12               h7f8727e_2
```

So I don't know what the problem may be. Any thoughts?

Thanks a lot.
It could be related to your channels or the solver is having a problem with your specific linux install.

First try ensuring proper channel order when you go to create the environment.

```
conda create -n cutadapt -c conda-forge -c bioconda cutadapt python=3.9
```

If that doesn't work try using the beta libmamba solver which is more powerful than the current one.

```
conda update -n base conda
conda install -n base conda-libmamba-solver

conda create -n cutadapt --experimental-solver=libmamba -c conda-forge -c bioconda cutadapt python=3.9
```