Add a suggestion for how to resolve chunk manager not available error

xarray/namedarray/parallelcompat.py

@@ -174,8 +174,15 @@ def get_chunked_array_type(*args: Any) -> ChunkManagerEntrypoint[Any]:
         if chunkmanager.is_chunked_array(chunked_arr)
     ]
     if not selected:
+        if (
+            maybe_lib := type(chunked_arr).__module__.split(".")[0]
+        ) in KNOWN_CHUNKMANAGERS:
+            suggestion = f"Please try installing {KNOWN_CHUNKMANAGERS[maybe_lib]!r}."
+        else:
+            suggestion = "This is usually the result of a missing dependency."
         raise TypeError(
             f"Could not find a Chunk Manager which recognises type {type(chunked_arr)}"
+            f" {suggestion}"
         )
     elif len(selected) >= 2:
         raise TypeError(f"Multiple ChunkManagers recognise type {type(chunked_arr)}")

xarray/tests/test_parallelcompat.py

@@ -223,7 +223,19 @@ def test_raise_if_no_matching_chunkmanagers(self) -> None:
         dummy_arr = DummyChunkedArray([1, 2, 3])
 
         with pytest.raises(
-            TypeError, match="Could not find a Chunk Manager which recognises"
+            TypeError,
+            match=r"Could not find a Chunk Manager .* missing dependency.",
+        ):
+            get_chunked_array_type(dummy_arr)
+
+    def test_recommend_known_chunkmanager_if_unavailable(self, monkeypatch) -> None:
+        # For instance for a cubed array, this recommends installing cubed-xarray
+        monkeypatch.setitem(KNOWN_CHUNKMANAGERS, "xarray", "dummy")
+
+        dummy_arr = DummyChunkedArray([1, 2, 3])
+        with pytest.raises(
+            TypeError,
+            match=r"Could not find a Chunk Manager .* try installing 'dummy'.",
         ):
             get_chunked_array_type(dummy_arr)