Troubleshooting

Table of Contents

Although IGMAS+ has been tested by many users around the world, there could still be a number of bugs and issues. In the changelog of every release we highlight the issues that have been solved. More information can be found in the release posts.

Feel free to provide us some feedback.

Below we list some known issues during installation and running IGMAS+, together with workarounds.

The jar installer does not start

On Windows, if you double-click on the IGMAS-install.jar file and the installer does not start, a common root cause is that another program has stolen the .jar association.

The workaround is to reinstall the Java Runtime Environment or fix the Windows Registry manually. You can also easily fix the problem with Jarfix.

See more information here.

Java 3D Not Installed

On Windows, the following error:

Java 3D can not be found, please reinstall Java3D 1.5+

can have different reasons behind:

JRE version

error_x64

This type of message is related to the fact that the version of JRE that has been installed is wrong. For instance, one could have installed the x86 version of JRE (for a 32-Bit system), but not the x64 (required for a 64-Bit OS), or the version is not 8.

JogAmp libraries missing

error_jogamp

This message can be related to the fact that you are installing IGMAS+ as a Standard User and not as an Administrator. In some cases Windows can block creation of temporary files created during installation (namely the JogAmp library and its component GlueGen).

If you are not able to install IGMAS+ as Administrator, a workaround for it on 64-Bit Windows would be:

  • Install IGMAS+ as a Standard User.
    The default folder is C:\Users\<your username>\IGMAS+
  • Create a folder named natives under IGMAS+\bin
  • Load jogamp-all-platforms.7z file from the JogAmp archive
  • Unpack the jogamp-all-platforms.7z archive (e.g. with 7-Zip)
  • Put the contents of folder jogamp-all-platforms to IGMAS+\bin\natives
  • Move the folder windows-amd64 from \IGMAS+\bin\natives\lib to \IGMAS+\bin\natives.

Too small font size

On Windows, when using displays with high resolution and system scaling, the fonts in IGMAS+ can still be too small:

small_fonts

Here is a workaround in case of too small fonts on Windows 10/11:

  1. Find out the path for the java binary IGMAS+ is using

    1. Start IGMAS+
    2. Open Help -> About
    3. Check the path in Runtime:

    about_runtime

    In this case: C:\Program Files\Amazon Corretto\jdk1.8.0_342\jre\bin

  2. Open File Explorer and navigate to this jre\bin folder

    1. Right click on file java.exe
    2. Click Properties
    3. Go to Compatibility tab
    4. Click Change high DPI settings
    5. Mark checkbox Override high DPI scaling behavior
    6. Select System from the dropdown Scaling performed by
    7. Click OK
    8. Click Apply

    java_scaling_properties

As a result, fonts are scaled:

scaled_fonts

Report an issue

If you have a found a bug and want to submit an issue report, please send your request together with a log file to:

See feedback section for more information.