Home | Table of Contents | Troubleshooting | CloverETL 4.6.1
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# Chapter 12. Troubleshooting

This chapter contains some unfrequent errors you may encounter and solutions to them.

## Windows

### Windows SmartScreen

In case of installation of CloverETL Designer on Microsoft Windows 8 the installer may be prevented from starting by SmartScreen.

Figure 12.1. SmartScreen warning

To start the CloverETL Designer installer click on More info, check that the publisher is Javlin, a.s. and then click on Run anyway.

Figure 12.2. Launching installer from SmartScreen

More information about SmartScreen:

- http://www.howtogeek.com/123938/htg-explains-how-the-smartscreen-filter-works-in-windows-8/

- http://en.wikipedia.org/wiki/Microsoft_SmartScreen

### User Account Control

On Microsoft Windows, the User Account Control can prevent the installer of CloverETL Designer from running. Click YES to allow the installer to run.

Figure 12.3. User Account Control Preventing the Intallation

### Windows 10 Firewall

Windows 10 shows security warning when Designer's Runtime is starting.

Figure 12.4. Windows 10 Firewall

CloverETL Designer application starts as two processes: CloverETL Designer GUI and CloverETL Runtime. These processes need to communicate with each other over TCP protocol. You should allow the mutual communication with Allow access button.

## Linux

### Designer Crashes due to Issue in Eclipse on Linux

Eclipse 3.8, 4.2 and 4.3 using some versions of WebKitGTK+ crashes. As a workaround, the following line can be added to the end of the `eclipse.ini`:

    -Dorg.eclipse.swt.browser.DefaultType=mozilla

See Eclipse bug tracker https://bugs.eclipse.org/bugs/show_bug.cgi?id=404776.

### Designer Stops Responding

Due to bug in Linux/GTK+, Designer runs out of number of open files as the backend opens the file `/etc/cups/client.cont` many times.

As workaround, you can configure the printers in `/etc/cups/client.conf` file, or add `-Dorg.eclipse.swt.internal.gtk.disablePrinting` to `CloverETL.ini` file. See https://wiki.eclipse.org/IRC_FAQ#Why_does_Eclipse_hang_for_an_extended_period_of_time_after_opening_an_editor_in_Linux.2Fgtk.2B.3F, https://bugs.eclipse.org/bugs/show_bug.cgi?id=215234 or https://bugzilla.gnome.org/show_bug.cgi?id=346903.

### Welcome Page not Displayed on Linux

Welcome page requires `webkitgtk` library to be present on your system. Install `webkitgtk` version 1.

See https://bugs.eclipse.org/bugs/show_bug.cgi?id=492379

### Hints on Edges Have no Content on Linux

If hints on edges contain only the frame but no content, you should install `webkitgtk`.

## Others

### Subclipse

If you use CloverETL Designer with Subclipse plugin, and perform the following steps: In a project, create a directory `aaa`, create a file `bbb`, delete the directory `aaa`, and rename file `bbb` to `aaa`; you may encounter the message:

    An exception has been caught while processing the refactoring 'Rename resource'.
    Reason:
    Problems encountered while moving resources.

    Error deleting markers for resource bbb.
    Resource aaa does not exist.

This problem is caused by caching resources by the Subclipse plugin an has nothing to do with CloverETL.

If this message appears, refresh the project in Navigator.

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