#4181·Fooocus

[Bug]: Fails to install

Author: coreybruceCreated May 21, 2026Updated Aug 7, 2026
Labelsbugtriage

Checklist

  • The issue has not been resolved by following the troubleshooting guide
  • The issue exists on a clean installation of Fooocus
  • The issue exists in the current version of Fooocus
  • The issue has not been reported before recently
  • The issue has been reported before but has not been fixed yet

What happened?

When I go through the install steps via Python Venv it fails

Steps to reproduce the problem

Install Using Python Venv

What should have happened?

installs and works

What browsers do you use to access Fooocus?

No response

Where are you running Fooocus?

Locally

What operating system are you using?

Manjaro Linux

Console logs

../numpy/_core/src/npysort/x86-simd-sort/src/xss-network-keyvaluesort.hpp:548:31: warning: variable ‘j’ set but not used [-Wunused-but-set-variable=]
              548 |     for (int i = numVecs / 2, j = 0; i < numVecs; i++, j++) {
                  |                               ^
            ninja: build stopped: subcommand failed.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      error: metadata-generation-failed
      
      × Encountered error while generating package metadata.
      ╰─> numpy
      
      note: This is an issue with the package mentioned above, not pip.
      hint: See above for details.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'scipy' when installing build dependencies for scipy
❯

Additional information

No response