topic Re: Thwx 7.4: Failed to load FlxCore library in ThingWorx Developers

Thwx 7.4: Failed to load FlxCore library

jasong — Fri, 24 Mar 2017 20:47:46 GMT

I wanted to give v7.4 a spin this afternoon, so I grabbed the Neo version and spun it up, with the new license file in the ThingworxPlatform folder.

Tomcat starts and then stops. Application log at shutdown:

2017-03-24 14:00:16.908-0600 [L: INFO] [O: c.t.s.s.Subsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Starting Subsystem [LicensingSubsystem]

2017-03-24 14:00:16.987-0600 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-03-24 14:00:16.987-0600 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Failed to load FlxCore library. Ensure it's in PATH (Windows) or LD_LIBRARY_PATH(other platforms) or set with the VM arg, -Djava.library.path. Error message : com.flexnet.licensing.DllEntryPoint.entry([B)I

2017-03-24 14:00:16.987-0600 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-03-24 14:00:16.987-0600 [L: WARN] [O: c.t.s.ThingWorxServer] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Shutting down the Platform.

Looking around, I did spot, 'webapps\Thingworx\WEB-INF\extensions\FlxCore64.dll'

Anyone have any ideas?

Re: Thwx 7.4: Failed to load FlxCore library

jasong — Fri, 24 Mar 2017 20:49:25 GMT

Also a question on the license file. How do we get our company's license file created?

What is the license file that comes with the installer?

Re: Thwx 7.4: Failed to load FlxCore library

cmorfin — Mon, 27 Mar 2017 07:59:16 GMT

Hi Jason

For the error message, have you tried what is indicated in the error message:

"Ensure it's in PATH (Windows) or LD_LIBRARY_PATH(other platforms) or set with the VM arg, -Djava.library.path."

it works for me after adding <Tomcat>\webapps\Thingworx\WEB-INF\extensions in PATH variable (I am on Windows)

Also how do you start Tomcat ? I seem to recall the startup.bat did have the path as a java argument. Maybe you are using a different way that do not load this file, but adding the environment variable should help.

Regarding the license file, as this stage, the license file is only linked to the software version and not a specific environment, so there is no customer specific license file.

Hope this help

Kind regards

Christophe

Re: Thwx 7.4: Failed to load FlxCore library

jasong — Mon, 27 Mar 2017 15:03:31 GMT

Yes, thanks. I added it to the path after reading the error but, uh, spelled Tomcat as "Tomcart" and big surprise, it didn't work.

It worked fine once I learned to copy and paste.

I don't believe this is in the new Install or upgrade document.

Re: Thwx 7.4: Failed to load FlxCore library

cmorfin — Mon, 27 Mar 2017 15:48:09 GMT

Hi Jason

I am happy that it worked for you ... typos are always very entertaining

Regarding the guide, I just checked the installation guide and it does mention to add the path to WEB-INF/extensions page 10 for Windows and page 36 for Linux.

The guide add it as a -Djava.library.path argument to Tomcat, but the result is the same.

Kind regards

Christophe

Re: Thwx 7.4: Failed to load FlxCore library

jasong — Wed, 05 Apr 2017 15:43:59 GMT

Good spot, I scanned that list and it looked the same to me as previous versions. I am Thanks for the help, I appreciate it. I think I am overworked!!!

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Mon, 24 Apr 2017 03:48:34 GMT

I am getting the same issue. I tried this solution but it did now work. My ThingWorx platform folder is in the OS(C:) directory and also contains the license file. Cannot figure out what the issue is. Any suggestions?

Re: Thwx 7.4: Failed to load FlxCore library

ankigupta — Mon, 24 Apr 2017 07:39:45 GMT

Rishit Shah,

Try adding <Tomcat>\webapps\Thingworx\WEB-INF\extensions in PATH variable in the System environment variables.

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Mon, 24 Apr 2017 15:40:39 GMT

Thank you for the response Ankit. I added it and I am still having the same issue.

Re: Thwx 7.4: Failed to load FlxCore library

supandey — Mon, 24 Apr 2017 15:56:46 GMT

@rishit Have you already checked this 7.4 Thingworx does not launch due to license error in Windows

Can you also share your application log/tomcat log? Which OS are you working with?

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Mon, 24 Apr 2017 16:07:28 GMT

Sushant Pandey

I did try the solution in link you have posted. The application log is as below

2017-04-24 10:52:44.621-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-04-24 10:52:44.621-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Failed to load FlxCore library. Ensure it's in PATH (Windows) or LD_LIBRARY_PATH(other platforms) or set with the VM arg, -Djava.library.path. Error message : com.flexnet.licensing.DllEntryPoint.entry([B)I

2017-04-24 10:52:44.623-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-04-24 10:52:44.623-0500 [L: WARN] [O: c.t.s.ThingWorxServer] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Shutting down the Platform.

Please let me know if I need to post any other portion of the log as well.

Thanks in advance

Update: I am working with Windows 10

Re: Thwx 7.4: Failed to load FlxCore library

cmorfin — Tue, 25 Apr 2017 09:57:12 GMT

Hi Rishit

Could you post the output of the following:

-open a command prompt on your Windows machine and execute set PATH

post the output here.

Also in the same command prompt could you navigate to <Tomcat>\webapps\Thingworx\WEB-INF\extensions folder and execute the command dir, and post the output here too .

Thanks

Christophe

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Tue, 25 Apr 2017 15:58:28 GMT

Below are the responses:

1) On executing the set PATH

\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\nodejs\;C:\Program Files (x86)\Skype\Phone\;C:\Program Files\PostgreSQL\9.6\bin;C:\Program Files (x86)\Apache Software Foundation\Tomcat 8.5\webapps\Thingworx\WEB-INF\extensions;C:\Windows\System32\wbem;C:\Users\rishi\Anaconda3;C:\Users\rishi\Anaconda3\Scripts;C:\Users\rishi\Anaconda3\Library\bin;C:\Users\rishi\AppData\Local\Microsoft\WindowsApps;C:\Python27;C:\Python27\Scripts;C:\Program Files\Git\usr\bin;C:\Program Files\Heroku\bin;C:\Program Files (x86)\Microsoft VS Code\bin;C:\Users\rishi\AppData\Roaming\npm;C:\Users\rishi\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin;C:\Program Files\Docker Toolbox;C:\Program Files\PostgreSQL\9.6\bin;C:\Windows\System32\wbem

PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC

2) On executing dir command

Volume in drive C is OS

Volume Serial Number is 38D8-5C7C

Directory of C:\Program Files (x86)\Apache Software Foundation\Tomcat 8.5\webapps\Thingworx\WEB-INF\extensions

04/23/2017 04:18 PM <DIR> .

04/23/2017 04:18 PM <DIR> ..

03/22/2017 02:05 PM 8,837,096 FlxCore64.dll

03/22/2017 02:05 PM 7,400,560 libFlxCore.2016.08.dylib

03/22/2017 02:05 PM 4,315,316 libFlxCore.so.2016.08

03/22/2017 02:05 PM 4,650,664 libFlxCore64.so.2016.08

03/20/2017 11:18 PM 140 readme.txt

5 File(s) 25,203,776 bytes

2 Dir(s) 882,745,126,912 bytes free

Re: Thwx 7.4: Failed to load FlxCore library

posipova — Tue, 25 Apr 2017 20:05:54 GMT

It seems you are running Tomcat 8.5. Please downgrade to Tomcat 8.0.x - 8.0.33 (minimum).

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Wed, 26 Apr 2017 22:48:19 GMT

I downgraded to tomcat 8.0.33 and still having the same issue.

Re: Thwx 7.4: Failed to load FlxCore library

TanmeyTWX — Thu, 27 Apr 2017 06:53:14 GMT

Hi,

I have a 32-bit processor machine and I am able to run 7.2 version of thingworx but whenever I am trying to deploy 7.4 version, getting below error

"Expecting Absolute path of Library Flxcore64.dll"

Note: I am simply copying thingworx.war in the web-apps folder of tomcat and already configured all the java related parameters in the tomcat.

Re: Thwx 7.4: Failed to load FlxCore library

ankigupta — Thu, 27 Apr 2017 07:19:03 GMT

32-bit processor is not supported. But you can try following:

Path of FlxCore64.dll is <Tomcat>\webapps\Thingworx\WEB-INF\extensions.

You can try to add the <Tomcat>\webapps\Thingworx\WEB-INF\extensions in PATH variable in the System environment variables.

Re: Thwx 7.4: Failed to load FlxCore library

cmorfin — Thu, 27 Apr 2017 08:59:44 GMT

When you downgraded Tomcat, is it still in the same location , C:\Program Files (x86)\Apache Software Foundation\Tomcat 8.5, or in some other location ?

How do you start Tomcat: as a service or as a program (executing the startup.bat script) ?

in any case, could you try the following:

- open a NEW command prompt

- execute set PATH

- ensure that the path to <Tomcat>\webapps\Thingworx\WEB-INF\extensions is listed there (make sure the path to Tomcat is correct if it has changed due to downgrade - NOTE if you need to update the PATH variable do open a NEW command prompt after updating the PATH variable)

- move to <Tomcat>/bin

- execute startup.bat

if it still fails, could you post:

- startup.bat

- output of set PATH (again in case there is a change of directory after downgrade)

It is important to open a new command prompt after updating the PATH variable in Control Panel as an already opened commmand prompt will not see the update of environment variable.

Re: Thwx 7.4: Failed to load FlxCore library

rshah1 — Fri, 28 Apr 2017 19:22:24 GMT

Christophe,

I start tomcat using catalina.bat run as startup.bat window disappears after execution without allowing me to copy/troubleshoot the error message.

I updated the path to new variable as per the location of the new tomcat directory. However I am still getting the same issue. Below is the result of set path with new location of tomcat 8.0.33.

Path=C:\ProgramData\Oracle\Java\javapath;C:\Python27;c:\windows\system32;C:\HashiCorp\Vagrant\bin;C:\Program Files\Git\cmd;C:\Program Files\Git\usr\bin;C:\Program Files (x86)\PuTTY\;C:\Users\rishi\.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\nodejs\;C:\Program Files (x86)\Skype\Phone\;C:\Program Files\PostgreSQL\9.6\bin;C:\Windows\System32\wbem;C:\Users\rishi\Desktop\Rishit_Nevotek\IOT\apache-tomcat-8.0.33\webapps\Thingworx\WEB-INF\extensions;C:\Users\rishi\Anaconda3;C:\Users\rishi\Anaconda3\Scripts;C:\Users\rishi\Anaconda3\Library\bin;C:\Users\rishi\AppData\Local\Microsoft\WindowsApps;C:\Python27;C:\Python27\Scripts;C:\Program Files\Git\usr\bin;C:\Program Files\Heroku\bin;C:\Program Files (x86)\Microsoft VS Code\bin;C:\Users\rishi\AppData\Roaming\npm;C:\Users\rishi\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin;C:\Program Files\Docker Toolbox;C:\Program Files\PostgreSQL\9.6\bin;C:\Windows\System32\wbem;C:\Users\rishi\Desktop\Rishit_Nevotek\IOT\apache-tomcat-8.0.33\webapps\Thingworx\WEB-INF\extensions

PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC

Below is the output of catalina.bat run as startup.bat makes the window disappear after execution

Expecting an absolute path of the library: FlxCore.dll

2017-04-28 14:15:48.512-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-04-28 14:15:48.512-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Failed to load FlxCore library. Ensure it's in PATH (Windows) or LD_LIBRARY_PATH(other platforms) or set with the VM arg, -Djava.library.path. Error message : com.flexnet.licensing.DllEntryPoint.entry([B)I

2017-04-28 14:15:48.512-0500 [L: ERROR] [O: c.t.s.s.l.LicensingSubsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] ====================================================================

2017-04-28 14:15:48.512-0500 [L: WARN] [O: c.t.s.ThingWorxServer] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Shutting down the Platform

Re: Thwx 7.4: Failed to load FlxCore library

posipova — Mon, 01 May 2017 14:18:24 GMT

What are yoyr tomcat java settings?

Try this without the java path to the license file (in addition to the default settings):

-Dserver -Dd64

-XX:+UseNUMA

-XX:+UseConcMarkSweepGC

-Dfile.encoding=UTF-8