Good morning, I have a user attempting to run ustacks. They are receiving the following error Fatal error: Exit code 126 (Error in Stacks execution) /home/big_galaxy/galaxy/database/jobs_directory/079/79363/tool_script.sh: /home/big_galaxy/galaxy/tool_dependencies/_conda/envs/mulled-v1-8e6d35eac718a13db6458b9361ca87c93be9feed656f9938ebcc435642f3a0a3/bin/stacks_summary.py: /home/big_galaxy/galaxy/tool_dependencies/_conda/envs/mulled-v1-8e6d35eac718a1: bad interpreter: No such file or directory The tool produces an additional output on the bug report – ustacks parameters selected: Sample ID: 1 Min depth of coverage to create a stack: 3 Max distance allowed between stacks: 2 Max distance allowed to align secondary reads: 4 Max number of stacks allowed per de novo locus: 3 Deleveraging algorithm: disabled Removal algorithm: enabled Model type: SNP Alpha significance level for model: 0.05 Gapped alignments: disabled Parsing stacks_inputs/ZU-6.fq Loading RAD-Tags...done Loaded 933120 RAD-Tags. Inserted 256463 elements into the RAD-Tags hash map. 0 reads contained uncalled nucleotides that were modified. 65509 initial stacks were populated; 190954 stacks were set aside as secondary reads. Initial coverage mean: 10.9276; Std Dev: 25.3864; Max: 4650 Deleveraging trigger: 36; Removal trigger: 62 Calculating distance for removing repetitive stacks. Distance allowed between stacks: 1; searching with a k-mer length of 35 (36 k-mers per read); 1 k-mer hits required. Removing repetitive stacks. Removed 993 stacks. 64677 stacks remain for merging. Post-Repeat Removal, coverage depth Mean: 10.2655; Std Dev: 9.03472; Max: 62 Calculating distance between stacks... Distance allowed between stacks: 2; searching with a k-mer length of 23 (48 k-mers per read); 2 k-mer hits required. Merging stacks, maximum allowed distance: 2 nucleotide(s) 64677 stacks merged into 57327 loci; deleveraged 0 loci; blacklisted 189 loci. After merging, coverage depth Mean: 11.0747; Std Dev: 9.82823; Max: 91 Merging remainder radtags 217265 remainder sequences left to merge. Distance allowed between stacks: 4; searching with a k-mer length of 13 (58 k-mers per read); 6 k-mer hits required. Matched 26211 remainder reads; unable to match 191054 remainder reads. After remainders merged, coverage depth Mean: 11.5347; Std Dev: 9.95581; Max: 93 Calling final consensus sequences, invoking SNP-calling model... Number of utilized reads: 742066 Writing loci, SNPs, and alleles to 'stacks_outputs/'... Refetching sequencing IDs from stacks_inputs/ZU-6.fq... read 933120 sequence IDs. done. ustacks is done. I am not sure what is causing the bad interpreter: No such file or directory. The tools are correctly installed along with its requisite conda packages. Any help would be greatly appreciated. Best Regards, David