# Error message when running file/graph with special char **URL:** \ **Category:** CloverDX Platform\ **Created:** [June 19, 2013, 12:00am UTC](https://forum.cloverdx.com/t/error-message-when-running-file-graph-with-special-char/1230 "2013-06-19T00:00:00Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![tomfs](https://avatars.discourse-cdn.com/v4/letter/t/df705f/32.png) [@tomfs](https://forum.cloverdx.com/u/tomfs)\ **Post date:** [June 19, 2013, 12:00am UTC](https://forum.cloverdx.com/t/error-message-when-running-file-graph-with-special-char/1230/1 "2013-06-19T00:00:00Z")
I found an issue where I would try to run a graph, but nothing would happen in the eclipse/clover tool. No error message or any indication as to what was wrong. This is on clover designer 3.4. After searching for a long time I figured out it was due to an ‘&’ in a file input name and graph name. It would be very helpful if the eclipse/clover tool would alert the user to this problem rather than silently doing nothing. ---
**Author:** ![imriskal](https://avatars.discourse-cdn.com/v4/letter/i/b38774/32.png) [@imriskal](https://forum.cloverdx.com/u/imriskal)\ **Post date:** [June 20, 2013, 1:05pm UTC](https://forum.cloverdx.com/t/error-message-when-running-file-graph-with-special-char/1230/2 "2013-06-20T13:05:50Z")
Hi, Tom, Ampersand in the name of your input file is not an issue but ampersand in the name of your graph is. You can open Error log in Eclipse (Window → Show view → Other… → General → Error log) and find an exception like this: java.lang.IllegalArgumentException: ‘&’ is an invalid character in a configuration name at org.eclipse.debug.internal.core.LaunchManager.isValidLaunchConfigurationName(LaunchManager.java:2672) It would be better to show this message to user automatically. So I started an issue in our Jira, see [https://bug.javlin.eu/browse/CLO-1069](https://bug.javlin.eu/browse/CLO-1069) Thank you for your feedback. Best regards,