I just installed miniconda3. I created a new environment “mappingV1” for mapping my sequence reads to the genome. When I tried to install bowtie2 or BWA using bioconda, it gave me the error message “Solving environment: failed with initial frozen solve. Retrying with flexible solve.” I searched a number of discussions about this and I only haven’t tried to downgrade the bioconda to a lower version yet. My current bioconda version is 4.13.0, and I read that I have to downgrade it to 4.6.0. I wonder whether this is really necessary. Whether there is any alternative way to fix this problem?