December 2, 2020 update:
  • The Poly website ( and Poly API will be shut down on June 30, 2021. Uploading of new assets will be disabled two months earlier, on April 30, 2021.
  • Previously uploaded assets will remain available and can be downloaded from until June 30, 2021.


The error code provided if there is an error during import.

CODE_UNSPECIFIED Unknown error code.
NO_IMPORTABLE_FILE The asset import did not include any file that we can import (i.e. an OBJ file).
EMPTY_MODEL When generating the preview for the import, no geometry was found.
OBJ_PARSE_ERROR A problem was encountered while parsing the OBJ file. The converter makes a 'best effort' attempt to continue when encountering such issues. In some cases the resulting preview model may still be acceptable. The details can be found in the parse error message.
EXPIRED The importer was not able to import the model before the expiration time.
IMAGE_ERROR The importer encountered a problem reading an image file.
EXTRA_FILES_WITH_ARCHIVE Multiple files were encountered in addition to a ZIP archive. When uploading an archive only one file is permitted.
DEFAULT_MATERIALS Default materials are used in the model. This means that one or more faces is using default materials either because no usemtl statement was specified or because the requested material was not found due to a missing material file or bad material name. This does not cover the case of missing textures.
FATAL_ERROR The importer encountered a fatal error and was unable to import the model.
INVALID_ELEMENT_TYPE The import includes a file of an unsupported element type. The file path is specified.