There is an incompatible JNA native library installed on this system

[tresf]

Starting with 2.1, QZ Tray uses Java and JNA for installation.

Unfortunately, this seems to cause some strange problems on systems with another version of JNA already on the $PATH. The error message looks something like this:

There is an incompatible JNA native library installed on this system
Expected: 5.2.2
Found:    6.0.0

PATH:
   C:\Program Files\Java\jre1.8.0_241\bin;
   C:\Windows\Sun\Java\bin;
   C:\Windows\system32;
   C:\Windows;
   C:\Program Files (x86)\Common Files\Oracle\Java\javapath;
   C:\Program Files\ImageMagick-7.0.9-Q16;
   C:\ProgramData\Oracle\Java\javapath;
   C:\Windows\system32;
   C:\Windows;
   C:\Windows\System32\Wbem;
   C:\Windows\System32\WindowsPowerShell\v1.0\;
   C:\Program Files\Microsoft\Web Platform Installer\;
   C:\Program Files\Cyberduck CLI\;
   C:\Program Files\PDF Tools AG\3-Heights(TM) PDF Printer Shell\bin\x64\;
   C:\Program Files\ValidatorBuddy CmdLine Tool;
   C:\Users\switch\AppData\Local\Microsoft\WindowsApps;
   c:\Program Files\Saxonica\SaxonHE9.7N\bin;
   C:\Program Files\xpdfbin-win-3.04\bin64;

To resolve this issue you may do one of the following:

- remove or uninstall the offending library
- set the system property jna.nosys=true
- set jna.boot.library.path to include the path to the version of the
   jnidispatch library included with the JNA jar file you are using
         at com.sun.jna.Native.<clinit>(Native.java:199)
         at com.sun.jna.platform.win32.Kernel32.<clinit>(Kernel32.java:42)
         at qz.installer.TaskKiller.killAll(Unknown Source)
         at qz.installer.Installer.preinstall(Unknown Source)
         at qz.utils.ArgParser.processInstallerArgs(Unknown Source)
         at qz.utils.ArgParser.intercept(Unknown Source)
         at qz.ws.PrintSocketServer.main(Unknown Source)
Installation failed during preinstall step.  Please check log for details.

[tresf]

Per java-native-access/jna#384, this bug can be easily reproduced by extracting JNA 5.5's jnidispatch.dll and placing it in System32 directory.

The workaround is very graciously in the error message:

- set the system property jna.nosys=true

Added this parameter to our launchers via dfb0d18. This fix will be part of the 2.1.1 release. If you need a copy before then, please email support@qz.io.

[DreaserousProductions]

this isn't working for me

[DreaserousProductions]

Picked up _JAVA_OPTIONS: -Djna.nosys=true
Exception in thread "main" java.lang.Error:

There is an incompatible JNA native library installed on this system
Expected: TEMPLATE
Found: 7.0.0
(at C:\Users*******\AppData\Local\Temp\jna--1969139829\jna14486003155458762043.dll).
To resolve this issue you may do one of the following:

• remove or uninstall the offending library

• set the system property jna.nosys=true

• set jna.boot.library.path to include the path to the version of the
  jnidispatch library included with the JNA jar file you are using

  at com.sun.jna.Native.(Native.java:225)
  at net.sourceforge.tess4j.util.LoadLibs.getTessAPIInstance(LoadLibs.java:83)
  at net.sourceforge.tess4j.TessAPI.(TessAPI.java:42)
  at net.sourceforge.tess4j.Tesseract.init(Tesseract.java:379)
  at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:292)
  at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:275)
  at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:256)
  at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:240)
  at javatap.score.main(score.java:38)

[tresf]

Picked up _JAVA_OPTIONS: -Djna.nosys=true Exception in thread "main" java.lang.Error:

There is an incompatible JNA native library installed on this system Expected: TEMPLATE Found: 7.0.0 (at
...

FYI, the previous post was also submitted (and thus will be tracked) here #1245.

[tresf]

Help me `There is an incompatible JNA native library installed on this system Expected: 7.0.0 Found: 6.1.6 (at /data/app/~~YsqeUJ9nEPaJsuP8OeFmHQ==/net.kdt.pojavlaunch-MT-zgn0zEsjCTB7yqAfneA==/lib/arm/libjnidispatch .so). To resolve this issue you may do one of the following:

• remove or uninstall the offending library
• set the system property jna.nosys=true
• set jna.boot.library.path to include the path to the version of the
  jnidispatch library included with the JNA jar file you are using
  [in thread "main"]`

What QZ Tray version?

[tresf]

I using PojavLauncher

You probably aren't using QZ Tray at all then. Sorry, but you'll need to escalate this issue with your Java Application vendor, which isn't us