# input/output error from BAM to Wiggle. But same files works well in Galaxy Europe!

**URL:** <https://help.galaxyproject.org/t/input-output-error-from-bam-to-wiggle-but-same-files-works-well-in-galaxy-europe/7135>\
**Category:** usegalaxy.org support\
**Tags:** troubleshooting\
**Created:** [December 2, 2021, 11:22am UTC](https://help.galaxyproject.org/t/input-output-error-from-bam-to-wiggle-but-same-files-works-well-in-galaxy-europe/7135 "2021-12-02T11:22:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SJLim](https://avatars.discourse-cdn.com/v4/letter/s/a183cd/32.png) [@SJLim](https://help.galaxyproject.org/u/SJLim)\
**Post date:** [December 2, 2021, 11:22am UTC](https://help.galaxyproject.org/t/input-output-error-from-bam-to-wiggle-but-same-files-works-well-in-galaxy-europe/7135/1 "2021-12-02T11:22:06Z")

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I want to convert my BAM files to Wiggle files. It’s my first time to do anything with the NGS data and I know almost nothing 😭  
I managed to get to Galaxy Europe and made the first .wig file.  
And then I found that there’s just ‘Galaxy’ and everything (uploading and all the processes) is much faster here.  
The problem is it keeps making error like this:

Skip multi-hits:False  
Run wigToBigWig outfile.wig /corral4/main/objects/e/d/e/dataset\_edef0b44-fbf8-43f1-b920-faf8498a4523.dat outfile.bw  
Processing chrIV …  
/bin/sh: /galaxy/main/linux-x86\_64/bin/wigToBigWig: Input/output error

I’m using same file in both Galaxy Europe and Galaxy. I don’t know why this error is happening… Can someone help me?  
I need to convert much bigger files from now on and Galaxy Europe is too slow for me.

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [December 21, 2023, 8:56pm UTC](https://help.galaxyproject.org/t/input-output-error-from-bam-to-wiggle-but-same-files-works-well-in-galaxy-europe/7135/2 "2023-12-21T20:56:03Z")

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Closed on December 21, 2023, 8:56pm UTC



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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [April 22, 2025, 11:09pm UTC](https://help.galaxyproject.org/t/input-output-error-from-bam-to-wiggle-but-same-files-works-well-in-galaxy-europe/7135/3 "2025-04-22T23:09:02Z")

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Unlisted on April 22, 2025, 11:09pm UTC