Warnings and failed compilation with Sphinx

[cervone]

Hello, when I try to execute make html I get the following output. All resulting html files are empty. Any ideas? Thank you.

make html
sphinx-build -b html -d build/doctrees source build/html
Running Sphinx v3.0.3
WARNING: html_static_path entry '_static' does not exist
loading pickled environment... done
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 0 source files that are out of date
updating environment: 0 added, 8 changed, 0 removed
reading sources... [100%] sphere/index
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/1-introduction'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/2-scale_distance'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/3-spauto'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/4-interpolation'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/5-global_regression'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/6-local_regression'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/7-spregression'
/Users/guido/github/rspatial-raster-web/source/analysis/index.rst:5: WARNING: toctree contains reference to nonexisting document 'analysis/8-pointpat'
/Users/guido/github/rspatial-raster-web/source/cases/index.rst:7: WARNING: toctree contains reference to nonexisting document 'cases/1-introduction'
/Users/guido/github/rspatial-raster-web/source/cases/index.rst:7: WARNING: toctree contains reference to nonexisting document 'cases/2-coastline'
/Users/guido/github/rspatial-raster-web/source/cases/index.rst:7: WARNING: toctree contains reference to nonexisting document 'cases/3-speciesdistribution'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/1-introduction'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/2-classes'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/3-objects'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/4-algebra'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/5-methods'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/6-plotting'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/7-writing'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/8-cell_level_functions'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/9-misc'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/appendix1'
/Users/guido/github/rspatial-raster-web/source/pkg/index.rst:6: WARNING: toctree contains reference to nonexisting document 'pkg/appendix2'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Introduction'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter1'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter2'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter4'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter5'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter7'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter8'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter9'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter10'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Chapter11'
/Users/guido/github/rspatial-raster-web/source/rosu/index.rst:4: WARNING: toctree contains reference to nonexisting document 'rosu/Appendix'
/Users/guido/github/rspatial-raster-web/source/rs/index.rst:7: WARNING: toctree contains reference to nonexisting document 'rs/1-introduction'
/Users/guido/github/rspatial-raster-web/source/rs/index.rst:7: WARNING: toctree contains reference to nonexisting document 'rs/2-exploration'
/Users/guido/github/rspatial-raster-web/source/rs/index.rst:7: WARNING: toctree contains reference to nonexisting document 'rs/3-basicmath'
/Users/guido/github/rspatial-raster-web/source/rs/index.rst:7: WARNING: toctree contains reference to nonexisting document 'rs/4-unsupclassification'
/Users/guido/github/rspatial-raster-web/source/rs/index.rst:7: WARNING: toctree contains reference to nonexisting document 'rs/5-supclassification'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/1_sdm_introduction'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/2_sdm_occdata'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/3_sdm_absence-background'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/4_sdm_envdata'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/5_sdm_models'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/6_sdm_methods'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/7_sdm_NULLmodels'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/8_sdm_references'
/Users/guido/github/rspatial-raster-web/source/sdm/index.rst:9: WARNING: toctree contains reference to nonexisting document 'sdm/9_sdm_brt'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/1-introduction'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/2-spatialdata'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/3-vectordata'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/4-rasterdata'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/5-files'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/6-crs'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/7-vectmanip'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/8-rastermanip'
/Users/guido/github/rspatial-raster-web/source/spatial/index.rst:7: WARNING: toctree contains reference to nonexisting document 'spatial/9-maps'
/Users/guido/github/rspatial-raster-web/source/sphere/index.rst:6: WARNING: toctree contains reference to nonexisting document 'sphere/1-introduction'
/Users/guido/github/rspatial-raster-web/source/sphere/index.rst:6: WARNING: toctree contains reference to nonexisting document 'sphere/2-distance'
/Users/guido/github/rspatial-raster-web/source/sphere/index.rst:6: WARNING: toctree contains reference to nonexisting document 'sphere/3-direction'
/Users/guido/github/rspatial-raster-web/source/sphere/index.rst:6: WARNING: toctree contains reference to nonexisting document 'sphere/4-tracks'
/Users/guido/github/rspatial-raster-web/source/sphere/index.rst:6: WARNING: toctree contains reference to nonexisting document 'sphere/5-polygons'
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [100%] sphere/index
generating indices... genindexdone
writing additional pages... searchdone
copying static files... ... done
copying extra files... done
dumping search index in English (code: en)... done
dumping object inventory... done
build succeeded, 62 warnings.

The HTML pages are in build/html.

Build finished. The HTML pages are in build/html.