error: command '/usr/bin/clang' failed with exit code 1

[mgerkq]

Hi i need help with the following problem: If i run python setup.py build_ext -i i get the following error:

`lib/python3.9/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:17:2: warning: "Using deprecated NumPy API, disable it with " "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-W#warnings]

warning "Using deprecated NumPy API, disable it with " \

^ uvc.c:15911:103: error: too many arguments to function call, expected 4, have 5 pyx_v_status = uvc_stream_start(pyx_v_self->strmh, NULL, NULL, __pyx_v_self->_bandwidth_factor, 0);

/opt/homebrew/Cellar/libuvc/0.0.6/include/libuvc/libuvc.h:567:13: note: 'uvc_stream_start' declared here
uvc_error_t uvc_stream_start(uvc_stream_handle_t *strmh,
            ^
uvc.c:17013:42: warning: comparison of integers of different signs: 'uint32_t' (aka 'unsigned int') and 'int' [-Wsign-compare]
  __pyx_t_7 = ((__pyx_v_uvc_frame->width == __pyx_v_j_width) != 0);
                ~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
uvc.c:17019:43: warning: comparison of integers of different signs: 'uint32_t' (aka 'unsigned int') and 'int' [-Wsign-compare]
  __pyx_t_7 = ((__pyx_v_uvc_frame->height == __pyx_v_j_height) != 0);
                ~~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~~
uvc.c:17195:26: warning: assigning to 'uvc_input_terminal_t *' (aka 'struct uvc_input_terminal *') from 'const uvc_input_terminal_t *' (aka 'const struct uvc_input_terminal *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  __pyx_v_input_terminal = uvc_get_input_terminals(__pyx_v_self->devh);
                         ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uvc.c:17204:27: warning: assigning to 'uvc_output_terminal_t *' (aka 'struct uvc_output_terminal *') from 'const uvc_output_terminal_t *' (aka 'const struct uvc_output_terminal *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  __pyx_v_output_terminal = uvc_get_output_terminals(__pyx_v_self->devh);
                          ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uvc.c:17213:27: warning: assigning to 'uvc_processing_unit_t *' (aka 'struct uvc_processing_unit *') from 'const uvc_processing_unit_t *' (aka 'const struct uvc_processing_unit *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  __pyx_v_processing_unit = uvc_get_processing_units(__pyx_v_self->devh);
                          ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uvc.c:17222:26: warning: assigning to 'uvc_extension_unit_t *' (aka 'struct uvc_extension_unit *') from 'const uvc_extension_unit_t *' (aka 'const struct uvc_extension_unit *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  __pyx_v_extension_unit = uvc_get_extension_units(__pyx_v_self->devh);
                         ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uvc.c:17797:23: warning: assigning to 'uvc_format_desc_t *' (aka 'struct uvc_format_desc *') from 'const uvc_format_desc_t *' (aka 'const struct uvc_format_desc *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  __pyx_v_format_desc = uvc_get_format_descs(__pyx_v_self->devh);
                      ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 warnings and 1 error generated.
error: command '/usr/bin/clang' failed with exit code 1`

can somebody help me with this issue?

[papr]

Hi @mgerkq

This is the important error:

uvc.c:15911:103: error: too many arguments to function call, expected 4, have 5 __pyx_v_status = uvc_stream_start(__pyx_v_self->strmh, NULL, NULL, __pyx_v_self->_bandwidth_factor, 0);

uvc.c is generated based on uvc.pyx, and this line specifically here. It calls this function in Pupil Labs's libuvc library.

As you can see, the correct target function indeed expects 5 arguments, not 4. My guess for you seeing the above error is that you did not install Pupil Labs' libuvc but a different version.

Therefore, I recommend uninstall your current libuvc and installing https://github.com/pupil-labs/libuvc