diff --git a/03_01.md b/03_01.md
index 89e698e..eeca55b 100644
--- a/03_01.md
+++ b/03_01.md
@@ -16,7 +16,7 @@ Create a freestyle job and configure it as follows:
 ```
 https://github.com/managedkaos/apache-maven-hello-world
 ```
-2. **MAKE SURE TO SET THE `Branch Specifier` to `*/main`**.
+2. **MAKE SURE TO SET THE `Branch Specifier` to `*/03_01`**.
 3. Add a build step using `Invoke Top-Level Maven Target`.
 4. Select the Maven version you configured in the previous step.
 5. For the goal, enter `package`.
@@ -30,7 +30,6 @@ Save the job and start the build.
 
 [Follow this link for more details on Windows](WINDOWS.md)
 
-
 # MacOS, Linux, and Docker
 Select the `Execute shell` build step.
 ```
@@ -39,3 +38,10 @@ java -cp target/hello-1.0-SNAPSHOT.jar com.learningjenkins.App
 Save the job and start the build.
 
 [Follow this link for more details on MacOS, Linux, and Docker](MAC_LINUX_DOCKER.md)
+
+# Troubleshooting Errors
+```
+ERROR: Couldn't find any revision to build. Verify the repository and branch configuration for this job.
+```
+This error means you have probably entered the wrong branch under Source Code Management.  You need to enter `*/03_01` for the branch.
+
diff --git a/MAC_LINUX_DOCKER.md b/MAC_LINUX_DOCKER.md
index 11b0ddf..03e96fe 100644
--- a/MAC_LINUX_DOCKER.md
+++ b/MAC_LINUX_DOCKER.md
@@ -29,4 +29,7 @@ java -cp target/hello-1.0-SNAPSHOT.jar com.learningjenkins.App
 Save the job and start the build.
 
 # Troubleshooting Errors
-
+```
+ERROR: Couldn't find any revision to build. Verify the repository and branch configuration for this job.
+```
+This error means you have probably entered the wrong branch under Source Code Management.  You need to enter `*/03_01` for the branch.
diff --git a/WINDOWS.md b/WINDOWS.md
index a610aee..b2a4fe2 100644
--- a/WINDOWS.md
+++ b/WINDOWS.md
@@ -29,4 +29,8 @@ java -cp target/hello-1.0-SNAPSHOT.jar com.learningjenkins.App
 Save the job and start the build.
 
 # Troubleshooting Errors
+```
+ERROR: Couldn't find any revision to build. Verify the repository and branch configuration for this job.
+```
+This error means you have probably entered the wrong branch under Source Code Management.  You need to enter `*/03_01` for the branch.