Problem:

When you migrate from an earlier version of ColdFusion to ColdFusion 9, your application does not recognize data sources.

Solution:

Redefine the data sources.

Problem:

When you migrate from an earlier version of ColdFusion to ColdFusion 9, the CFCs do not appear in the Components panel of Dreamweaver.

Solution:

Check the mappings and update them as necessary.

Problem:

On UNIX and Linux systems, when you try to install ColdFusion on systems where the /tmp partition is mounted noexec, the installation fails.

Solution:

This is because the install attempts to use the /tmp directory for unpacking and running the installer runtime. To avoid this issue, set the IATEMPDIR environment variable to a directory on the system that has execute permissions before running the installer.

Problem:

When you try to install ColdFusion, the installation fails and generate the error:

"java.lang.OutOfMemoryError Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)" 

Solution:

You must clean up the directory to which the installer is trying to extract the JRE, for example, /tmp.