Unable to launch ER Debugger/Debug Application. Receive the following pop-up screen error: 

"Unable to establish connection with Broker. Debugger cannot continues."

SOLUTION

Check BPMBroker

Please check the following to make sure BPMBroker and its related files are installed correctly.

1. Please check deployment server "OneWorld Client Install\ThirdParty\BPMBroker" directory and see if you have all the files shown in the screen shot below.

2. check the registry on the local fat client at HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JDEdwards\OneWorld

If you cannot find the above directories and files, reinstall BPMBroker by running bpm_setup.bat from deployment server "OneWorld Client Install\ThirdParty\BPMBroker" directory.

Note: For Windows 7 (64bit) workstations, you may need to modify the bpm_setup.bat file. The script in the batch file references a registry that does not exist for Windows 7 (64bit), i.e.

HKEY_LOCAL_MACHINE\SOFTWARE\JDEdwards\OneWorld\Install.ini
You will need to modify the batch file to reference the registry at:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JDEdwards\OneWorld\Install.ini

Make sure the path of the jre is correct and you can find the actual jvm.dll file in the path specified on your fat client.
Make sure all the drive letters and paths are correct for jvmlauncher, jre, and ClassPath. 
Example of ClassPath value: (Note: The drive letter should be where E1 is installed) 
c:\e900\system\classes\Base_JAR.jar;c:\e900\system\classes\E1Broker_JAR.jar;c:\e900\system\classes\E1BrokerConnector_JAR.jar;c:\e900\system\classes\E1BrokerUtil_JAR.jar;c:\e900\System\Classes\log4j.jar;c:\e900\system\classes\soap_2.3.jar;c:\e900\system\classes\xerces.jar;c:\e900\System\classes\activation.jar;c:\e900\System\classes\mail.jar;c:\e900\system\classes;
Make sure the port is set to 9876.
Note that the JRE string value is the location of the JVM.  This is usually <Drive Letter>:\<E1 Release>\system\JRE\<JRE version>\bin\client\jvm.dll or <Drive Letter>:\<E1 Release>\system\JRE\bin\client\jvm.dll.  
and the MainClass string value is com/jdedwards/bpm/broker/BPMBroker Use forward slashes, not periods, and not backslashes. 

3. Make sure the following DLL files are registered on the workstation using the command:
regsvr32 <Drive Letter>:\<E1 Release>\system\bin32\<DLL name>
E1Soap.dll (Only available from 8.97 tools release and higher)
DebuggerService.dll
WinUBEDbgService.dll
JDEBPMSoap.dll
JDEBPMSockets.dll

Note: If you still encounter problem after performing the above steps, please ensure that the latest Microsoft Windows Patches are installed