# Libgfortran.5.dylib not found after install

**URL:** https://scilab.discourse.group/t/libgfortran-5-dylib-not-found-after-install/909
**Category:** General usage
**Tags:** macos
**Created:** [April 13, 2025, 12:31pm UTC](https://scilab.discourse.group/t/libgfortran-5-dylib-not-found-after-install/909 "2025-04-13T12:31:21Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![egork](https://avatars.discourse-cdn.com/v4/letter/e/8edcca/32.png) [@egork](https://scilab.discourse.group/u/egork)
#### Post date: [April 13, 2025, 12:31pm UTC](https://scilab.discourse.group/t/libgfortran-5-dylib-not-found-after-install/909/1 "2025-04-13T12:31:21Z")

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I have a problem with not found lib after installation with brew.

```auto
egorkuznecov@MacBook-Pro-Egor ~ % scilab          
dyld[12930]: Library not loaded: @rpath/libgfortran.5.dylib
  Referenced from: <D88B135B-CA8B-3AE5-93BB-7D8AF5518515> /Applications/scilab-2025.0.0.app/Contents/bin/scilab-bin
  Reason: tried: '/Applications/scilab-2025.0.0.app/Contents/share/scilab/../../lib/scilab//libgfortran.5.dylib' (no such file), '/libgfortran.5.dylib' (no such file), '/Applications/scilab-2025.0.0.app/Contents/lib/thirdparty/libgfortran.5.dylib' (duplicate LC_RPATH '@loader_path'), '/Applications/scilab-2025.0.0.app/Contents/thirdparty/jre/lib/libgfortran.5.dylib' (no such file), '/Applications/scilab-2025.0.0.app/Contents/lib/scilab/libgfortran.5.dylib' (no such file), '/Applications/scilab-2025.0.0.app/Contents/lib/thirdparty/libgfortran.5.dylib' (duplicate LC_RPATH '@loader_path'), '/Applications/scilab-2025.0.0.app/Contents/thirdparty/jre/lib/libgfortran.5.dylib' (no such file), '/Applications/scilab-2025.0.0.app/Contents/lib/scilab/libgfortran.5.dylib' (no such file), '/Applications/scilab-2025.0.0.app/Contents/lib/thirdparty/libgfortran.5.dylib' (duplicate LC_RPATH '@loader_path')
/opt/homebrew/bin/scilab: line 928: 12930 Abort trap: 6 "$SCILABBIN" "$@"

```

I tried to find easy way to install libgfortran.5.dylib like gcc@6 installation however it is not possible with brew now. The main reason is that lib old enough.

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<div class="post-metadata">

### Author: ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)
#### Post date: [April 13, 2025, 4:47pm UTC](https://scilab.discourse.group/t/libgfortran-5-dylib-not-found-after-install/909/2 "2025-04-13T16:47:29Z")

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Hello,

See the updated thread about macOS 15.4 update: [Scilab not starting after latest update MacBook](https://scilab.discourse.group/t/scilab-not-starting-after-latest-update-macbook/897)

S.

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<div class="post-metadata">

### Author: ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)
#### Post date: [December 8, 2025, 3:29pm UTC](https://scilab.discourse.group/t/libgfortran-5-dylib-not-found-after-install/909/3 "2025-12-08T15:29:45Z")

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