update composer fails

Today I got this for a change trying to update via Composer:

[RuntimeException]                                                                                                                              
  Failed to execute git checkout 'f7543bcb7ad1b08c1924d65aeea9e353d5953381' -- && git reset --hard 'f7543bcb7ad1b08c1924d65aeea9e353d5953381' --  
  error: The following untracked working tree files would be overwritten by checkout:                                                             
  	tests/phpunit/Integration/ByJsonScript/Fixtures/p-0408 [#1252] intext to use non-strict mode.json                                              
  Please move or remove them before you can switch branches.                                                                                      
  Aborting

Solution

Go to the directory "/extensions", do a rm -r SemanticMediaWiki/ there, go back to wiki root "/w" and do the composer update --prefer-source --no-dev

[[kgh]] (talk)

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