Error on Shipping Page: Missing Message Key & Missing maxParameterCount in server.xml"

Problem:

In the shipping page, when clicking "Ship," the following error message appears:
"Exception while setting the message: javax.servlet.jsp.JspException: missing message key."
Additionally, the maxParameterCount parameter doesn't exist in the server.xml file.

Solution:

This error can be caused by several factors. Below, we explain one common reason and provide a solution.

Reason 1: Missing maxParameterCount in server.xml

When the maxParameterCount parameter is not configured in the server.xml file, the application might fail to process requests with many parameters.

Solution:
Follow these steps to configure the maxParameterCount parameter in the server.xml file:

Step 1: Navigate to the Tomcat conf folder:

• Go to tomcat > conf.

Step 2: Open the server.xml file:

• Locate the server.xml file in the conf folder.

Step 3: Add the maxParameterCount parameter:

• Inside the server.xml file, find the <Connector> tag.

• Add the following line inside the <Connector> tag:

  maxParameterCount="-1"
  

Step 4: Restart Tomcat:

• After adding the parameter, save the file and restart the Tomcat server.

Reason 2: Missing or Incorrect Message Key in Resource Bundle

The error may also occur if the application is trying to retrieve a message from the resource bundle (such as a .properties file) but cannot find the corresponding message key.

Solution:
To resolve this issue, follow these steps:

Step 1: Check the messages.properties or resource bundle file:

• Locate the relevant .properties file or resource bundle where the message keys are stored (e.g., messages.properties).

Step 2: Ensure the correct message key exists:

• Search for the missing key referenced in the error message.

• If the key is missing, add the appropriate message entry.

Step 3: Save and redeploy the application:

• After adding the missing key, save the file and redeploy the application.

Reason 3: Corrupt or Incomplete Deployment

In some cases, a corrupt or incomplete deployment can lead to this error.

Solution:
To resolve deployment issues, follow these steps:

Step 1: Clear temporary folders:

• Navigate to the Tomcat work and temp directories, and delete any cached or temporary files.

Step 2: Re-deploy the application:

• Re-deploy the application in Tomcat or your application server to ensure all files are properly deployed.

Step 3: Restart the server:

• After redeployment, restart Tomcat to apply the changes.

Reason 4: Java/JSP Compatibility Issues

In some cases, an incompatible Java version or JSP engine may cause this error.

Solution:
To resolve compatibility issues, follow these steps:

Step 1: Verify Java Version Compatibility:

• Ensure that the version of Java running on the server is compatible with your application.

Step 2: Check JSP engine compatibility:

• Confirm that the JSP engine used by your server is compatible with the application’s requirements.

Step 3: Review server logs for related errors:

• Check the Tomcat logs for any related Java or JSP compatibility errors.