Problem on synapsen

Problem during Installation

Wed, 02 Jan 2019 18:49:42 +0100

Sometimes the installer routine of synapsen fails, displaying a message like this:

This somehow cryptic message means the installer found a wrong version of Java on your system. Please make sure you have a Java Virtual Machine (JVM) available at least at version 1.8 (Java 8). You can load the JVM directly from Oracle.

Also important: Currently, synapsen does not support Java 11. Please use Java 1.8_192, Java 9, or Java 10.

Startup problem: No program window visible

Wed, 14 Nov 2018 11:36:33 +0800

Although you have started the program as usual, wait in vain for the synapsen main window to open. Nothing happens, not even an error message? - The reason is: the window has opened, but not in the visible part of the screen, for whatever reason. In these, however, you can easily direct the program in again by doing the following:

Finish synapsen if it is still active somewhere in the background.

Synapsen no longer displays data

Wed, 14 Nov 2018 11:36:33 +0800

After updating synapsen, the program can still be started, but each of the slips of paper only shows the hint “Links into void”. The problem is that the internal database has not been updated correctly. You can fix this by executing the file updateSynapsen4.jar.

Startup problem with error message: »Connection to internal server failed«

Wed, 01 Nov 2000 11:36:33 +0800

After updating synapsen an error message “Connection to internal server failed” may occur. The program will abort at startup. The problem is that the internal database cannot be accessed correctly. A number of reasons can be responsible for this.

The most common reason is that the internal database has not been updated by synapsen. You can fix this by executing the file updateSynapsen4.jar.

It is also possible that you do not have sufficient access rights to the working directory of synapsen. This is a problem that often occurs under Windows 7 or Windows Vista, but also on Linux systems. The solution is comparatively easy: Simply set the permissions manually so that you as the user have read and write access to the syndb directory in the synapsen folder. You may also need to turn off Windows UAC.