Unable To Run Flow Connecting To Tableau Cloud By Tableau Prep Builder Command Line On Proxy Configured Environment

1. Go to C:\Program Files\Tableau\Tableau Prep Builder <version>\scripts by Windows Explorer.
2. Copy tableau-prep-cli.bat and save with an another name to create a backup copy.
3. Open tableau-prep-cli.bat by a text editor.
4. Set DEFAULT_JVM_OPT with replacing values for DproxyHost and DproxyPort with the appropriate values for your environment, then save the file

   @rem Add default JVM options here. You can also use JAVA_OPTS and TPREP_CLI_APP_OPTS to pass JVM options to this script.
   set DEFAULT_JVM_OPTS=-DproxySet=true -DproxyHost=<Host name or IP address of the proxy server> -DproxyPort=<port number of the proxy server>
   

Note: If you don’t have write permissions on this file, use the system file settings to enable them.

Warning: Make sure to only include the hostname. For example,  if the proxy server address is http://myproxy:8888, then it should be http.proxyHost=myproxy in the example below.

1. In your file directory, verify the version of Java used to run Tableau Prep Builder.
   • Windows example: C:\Program Files\Tableau\Tableau Prep Builder <Version>\Plugins\jre\
2. In the Java locations directory, select the conf folder. If this directory doesn’t exist, then create one.  By default the location is: C:\Program Files\Tableau\Tableau Prep Builder<version>\Plugins\jre\conf   
3. In the conf folder, locate the net.properties file, and open it in a text editor. If this file doesn’t exist, then create one by the same name.
4. Modify or create the following values in net.properties file and save it:
   • http.proxyPort=<your proxy port>
   • http.proxyHost=<your proxy host address>
   • http.nonProxyHosts=localhost|127.*|[::1]|<your proxy host address>
   • https.proxyPort=<your proxy port>
   • https.proxyHost=<your proxy host address>
5. Run the flow again with Tableau Prep Command Line.