anjakefala commented on code in PR #14260:
URL: https://github.com/apache/arrow/pull/14260#discussion_r981842463


##########
docs/source/developers/python.rst:
##########
@@ -636,6 +636,52 @@ Caveats
 
 The Plasma component is not supported on Windows.
 
+Deleting stale build artifacts
+==============================
+
+When there have been changes to the structure of the Arrow C++ library or 
Pyarrow,
+a thorough cleaning is recommended as a first attempt to fixing build errors.
+
+.. note::
+
+   It is not necessarily intuitive from the error itself that the problem is 
due to stale artifacts.
+   Example of a build error from stale artifacts is "Unknown CMake command 
"arrow_keep_backward_compatibility".
+
+To delete stale Arrow C++ build artifacts:
+
+.. code-block::
+
+  $ rm -rf arrow/cpp/build
+
+To delete stale PyArrow build artifacts:
+
+.. code-block::
+
+  $ pushd python
+  $ python3 setup.py clean
+  $ popd
+
+To delete misc build artifacts that are hidden from ``git``:
+
+.. code-block::
+
+  $ git clean -Xfd .
+
+If using a Conda environment, there are some build artifacts that get 
installed in
+``$ARROW_HOME`` (aka ``$CONDA_PREFIX``). For example, 
``$ARROW_HOME/lib/cmake/Arrow*``.

Review Comment:
   That is why I provided that recommendation! It is a bigger thing to remove 
and reinstall, but it makes for cleaner, simpler advice. 



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