# Err: ERROR: Unable to find trf. Please provide the full path to trf with --trf

**URL:** <https://forum.biobakery.org/t/err-error-unable-to-find-trf-please-provide-the-full-path-to-trf-with-trf/4602>\
**Category:** bioBakery workflows\
**Created:** [January 5, 2023, 9:55am UTC](https://forum.biobakery.org/t/err-error-unable-to-find-trf-please-provide-the-full-path-to-trf-with-trf/4602 "2023-01-05T09:55:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Frankie](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/frankie/32/1513_2.png) [@Frankie](https://forum.biobakery.org/u/Frankie)\
**Post date:** [January 5, 2023, 9:55am UTC](https://forum.biobakery.org/t/err-error-unable-to-find-trf-please-provide-the-full-path-to-trf-with-trf/4602/1 "2023-01-05T09:55:31Z")

</div>

I ran the test data of “biobakery\_workflows wmgx” process, but I got the following mistake, I’m sure I installed trf software.  
Run Finished  
Task 0 failed  
Name: kneaddata\_\_\_\_LV16R4\_subsample  
Original error:  
Error executing action 0. Original Exception:  
Traceback (most recent call last):  
File “/Share/app/anaconda3-20211117/envs/biobakery3/lib/python3.7/site-packages/anadama2/runners.py”, line 200, in \_run\_task\_locally  
action\_func(task)  
File “/Share/app/anaconda3-20211117/envs/biobakery3/lib/python3.7/site-packages/anadama2/helpers.py”, line 107, in actually\_sh  
ret = \_sh(s, \*\*kwargs)  
File “/Share/app/anaconda3-20211117/envs/biobakery3/lib/python3.7/site-packages/anadama2/util/ **init**.py”, line 320, in sh  
raise ShellException(proc.returncode, msg.format(cmd, ret[0].decode(‘utf-8’), ret[1].decode(‘utf-8’)))  
anadama2.util.ShellException: [Errno 1] Command `kneaddata --unpaired /Share/home/lk/test-data/LV16R4\_subsample.fastq.gz --output /Share/home/lk/out2/kneaddata/main --threads 1 --output-prefix LV16R4\_subsample --cat-final-output --reference-db /Share/app/biobakery\_workflows\_database/kneaddata\_db\_human\_genome --serial --run-trf && gzip -f /Share/home/lk/out2/kneaddata/main/LV16R4\_subsample.fastq ’ failed.  
Out:  
Err: ERROR: Unable to find trf. Please provide the full path to trf with --trf.