The lazy val chipyard bit was out of date in this doc page

docs/Customization/Custom-Chisel.rst

@@ -44,7 +44,8 @@ build.sbt.
     cd generators/
     git submodule add https://git-repository.com/yourproject.git
 
-Then add ``yourproject`` to the Chipyard top-level build.sbt file.
+Then add ``yourproject`` to the Chipyard top-level build.sbt file. 
+Make sure it goes above the definition `lazy val chipyard`.
 
 .. code-block:: scala
 
@@ -52,8 +53,22 @@ Then add ``yourproject`` to the Chipyard top-level build.sbt file.
 
 You can then import the classes defined in the submodule in a new project if
 you add it as a dependency. For instance, if you want to use this code in
-the ``chipyard`` project, change the final line in build.sbt to the following.
+the ``chipyard`` project, add your project to the list of sub-projects in the 
+`.dependsOn()` for `lazy val chipyard`. The original code may change over time, but it
+should look something like this:
 
 .. code-block:: scala
 
-    lazy val chipyard = (project in file(".")).settings(commonSettings).dependsOn(testchipip, yourproject)
+    lazy val chipyard = (project in file("generators/chipyard"))
+        .dependsOn(testchipip, rocketchip, boom, hwacha, sifive_blocks, sifive_cache, iocell,
+            sha3, dsptools, `rocket-dsp-utils`,
+            gemmini, icenet, tracegen, cva6, nvdla, sodor, ibex, fft_generator,
+            yourproject, // <- added to the middle of the list for simplicity
+            constellation, mempress)
+        .settings(libraryDependencies ++= rocketLibDeps.value)
+        .settings(
+            libraryDependencies ++= Seq(
+            "org.reflections" % "reflections" % "0.10.2"
+            )
+        )
+        .settings(commonSettings)