Game fails to open with Seamless Coop

[R4ng3x]

Opening the game with the normal launcher works perfectly, but opening it with Seamless Co-op opens the cmd and the game pretends to open but closes instantly.

I am playing on Windows 11 with the game on the latest version and Seamless Co-op on v1.5.1.

[Juppstein]

Same here with er-patcher and the latest seamless-coop 1.7.6 running on Linux Steam/Proton Experimental

[metinc]

I can confirm this bug. As a temporary workaround you can open the file er-patcher and remove the very last line:
rmtree(game_dir_patched)

I will have a look at this and might open a PR if I find a solution.

For debugging I'll leave the error message here:

PS C:\Program Files (x86)\Steam\steamapps\common\ELDEN RING\Game> python er-patcher --all --executable .\ersc_launcher.exe -- .\eldenring.exe
Traceback (most recent call last):
  File "C:\Program Files (x86)\Steam\steamapps\common\ELDEN RING\Game\er-patcher", line 152, in <module>
    rmtree(game_dir_patched)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0\Lib\shutil.py", line 787, in rmtree
    return _rmtree_unsafe(path, onerror)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0\Lib\shutil.py", line 634, in _rmtree_unsafe
    onerror(os.unlink, fullname, sys.exc_info())
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0\Lib\shutil.py", line 632, in _rmtree_unsafe
    os.unlink(fullname)
PermissionError: [WinError 5] Access is denied: 'er-patcher-tmp\\eldenring.exe'