# First run of DVC - getting a "failed to reproduce" error **URL:** \ **Category:** Questions\ **Created:** [April 4, 2019, 2:58pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171 "2019-04-04T14:58:11Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![spiette](https://avatars.discourse-cdn.com/v4/letter/s/b9e5f3/32.png) [@spiette](https://discuss.dvc.org/u/spiette)\ **Post date:** [April 4, 2019, 2:58pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/1 "2019-04-04T14:58:11Z")
Hi, I just cloned a project from a colleague; in this project there is a _.dvc_ file, with some _deps_ and some _outs_. When I run _dvc repro -f myfile.dvc_, I got an error > …failed to reproduce ‘myfile.dvc’: output ‘xxx’ does not exist Well, obviously the _output_ does not exist, this is the first time I run the script, so nothing was created yet ! I got the same error when I run with the ‘–force’ flag How do I run the pipeline for the first time ? I am missing something ? ---
**Author:** ![kupruser](https://avatars.discourse-cdn.com/v4/letter/k/e95f7d/32.png) [@kupruser](https://discuss.dvc.org/u/kupruser)\ **Post date:** [April 4, 2019, 3:05pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/2 "2019-04-04T15:05:35Z")
Hi @spiette ! Could you show us `cat myfile.dvc`? I suspect it is a `dvc add`'ed file, which means that it is not reproducible, but should be either placed manually or pulled from a remote. Try running `dvc pull` to download needed data first. Thanks, Ruslan ---
**Author:** ![spiette](https://avatars.discourse-cdn.com/v4/letter/s/b9e5f3/32.png) [@spiette](https://discuss.dvc.org/u/spiette)\ **Post date:** [April 4, 2019, 3:28pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/3 "2019-04-04T15:28:13Z")
> cmd: “conda activate myenv\n python src/myscript.py -c config\_all.ini;\n > \ python src/myscript2.py -c config\_all.ini” > deps: > - md5: 78da773cf0aa66adb3dc21647992ecfc > path: src/myscript.py > - md5: 8394510c4a7e1c7fa7b36645c92545a4 > path: src/myscript2.py > - md5: 1e3216f583241b07eb5f67a454718966 > path: src/myscript3.py > - md5: 0cf90aca2f6dfc86f586696839309291 > path: config\_all.ini > md5: 3422060a09515220f65dcc0befe3367a > outs: > - cache: true > md5: 246087ad63ed1d4d0b34959e48335213 > metric: false > path: …/abc/output1.pkl > - cache: true > md5: e78ff278a3cc1544d9593d0da83e2344 > metric: false > path: …/abc/output2.csv > - cache: true > md5: cbf185aeee1a963812b4338577ae4b04 > metric: false > path: …/abc/output4.csv > - cache: true > md5: dde8676c4e199de6fb47fd495edf91ed.dir > metric: false > path: …/abc/data\_all > - cache: false > md5: 273a2fced4472c0959c775d37380915f > metric: true > path: …/abc/some.json > wdir: . `dvc pull` just throw an error; we haven’t set up remote data yet ---
**Author:** ![kupruser](https://avatars.discourse-cdn.com/v4/letter/k/e95f7d/32.png) [@kupruser](https://discuss.dvc.org/u/kupruser)\ **Post date:** [April 4, 2019, 3:31pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/4 "2019-04-04T15:31:45Z")
@spiette Thanks! I think I need a bit more info. So what is `xxx` from original error? Is it one of myfile.dvc outputs? Or is it defined in some other file like `xxx.dvc`? ---
**Author:** ![spiette](https://avatars.discourse-cdn.com/v4/letter/s/b9e5f3/32.png) [@spiette](https://discuss.dvc.org/u/spiette)\ **Post date:** [April 4, 2019, 3:42pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/5 "2019-04-04T15:42:16Z")
The error comes from the first outs : …/abc/output1.pkl > ``` > dvc repro .\myfile.dvc > Warning: Output '..\abc\output1.pkl' of 'myfile.dvc' changed because it is 'not in cache' > Warning: Dvc file 'myfile.dvc' changed. > Stage 'myfile.dvc' changed. > Reproducing 'myfile.dvc' > Running command: > conda activate myenv > python src/myscript.py -c config_all.ini; > python src/myscript2.py -c config_all.ini > Error: failed to reproduce 'myfile.dvc': output '..\abc\output1.pkl' does not exist > > Having any troubles? Hit us up at https://dvc.org/support, we are always happy to help! > > ``` ---
**Author:** ![kupruser](https://avatars.discourse-cdn.com/v4/letter/k/e95f7d/32.png) [@kupruser](https://discuss.dvc.org/u/kupruser)\ **Post date:** [April 4, 2019, 3:47pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/6 "2019-04-04T15:47:27Z")
Thanks! Dvc ran your command, but the command didn’t produce `..\abc\output1.pkl` for some reason, which is why dvc is complaining. Could you look around your project, maybe your command created `output1.pkl` at some other path? ---
**Author:** ![kupruser](https://avatars.discourse-cdn.com/v4/letter/k/e95f7d/32.png) [@kupruser](https://discuss.dvc.org/u/kupruser)\ **Post date:** [April 4, 2019, 4:16pm UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/7 "2019-04-04T16:16:04Z")
@spiette Also, I see you are running windows. Was your colleague using linux or mac? If so, you might want to check your script to handle os.path correctly. E.g. it might output to `../abc/output1.pkl` which is not a valid subdirs path on windows, which might’ve resulted in a file `../abc/output1.pkl`(no subdirs, slashes are handled as a part of the filename) created on windows instead of `..\abc\output1.pkl` ---
**Author:** ![spiette](https://avatars.discourse-cdn.com/v4/letter/s/b9e5f3/32.png) [@spiette](https://discuss.dvc.org/u/spiette)\ **Post date:** [April 11, 2019, 9:44am UTC](https://discuss.dvc.org/t/first-run-of-dvc-getting-a-failed-to-reproduce-error/171/8 "2019-04-11T09:44:25Z")
Hi, I think I found my problem; The “cmd” part of the dvc file contain multiple commands. While it works on \*unix, it seems to just start one command on powershell, ignoring the other … Putting all these command in one script file solve the problem