Also, a community member added the following post related to this
viewtopic.php?p=31913#p31913

Hi,

My colleague Jonathan wrote about an error very similar to this.

Can you take a look and let me know if that helps

viewtopic.php?p=31357#p31357

Best

Neil

Hi, The error seems to not be with Essential but rather another application that uses the library ssojho64.dll # Problematic frame: # C [ssojho64.dll+0x13cc6] Do you have Oracle Single Sign On installed? If so, does shutting this down (not just pausing) resolve this issue? A search on Google for &qu...

Hi Mike,

Can I confirm you have repository admin or system admin rights?

Did you say you can delete the last snapshot but not others?

Thanks

Neil

Can you provide some more detail on what class and instance caused the issue or if it happens all the time, do you remember what you were working on when this happened?

Awesome!

Thanks for the tip!

We have spent some time trying to recreate this but to no avail. We all mostly use Macs and have done for a long time and have never encountered anything like you describe. Other thoughts... You could try creating a temporary user account and running Protege in there? Does the same thing happen? You...

That's great to hear. Did you identify the issue?

Hi,

Did it fail with an error or just appear to hang?

This step may take any where from 10 mins to multiple hours to run depending on the repository size.

If it hasn't displayed an error then you might want to try leaving this running for a few hours.

Let me know

Thanks

Neil

Hi, I have attached zip file which breaks down the update into smaller pieces. Unzip the file and you will see 6 EUP files. They should be applied in the correct order (1-6). After applying each pack, save your project with a new name, close Protege and reopen the last saved version. This should get...

Hi, Are you running an Intel Mac or an Apple Silicon (ARM) Mac (M1, M2, etc)? Did you install the JVM for the relevant architecture (Intel vs Arm)? Given our own extensive use of Mac and Protege (for more than 10 years) where we haven't seen this, I wonder if some other app/utility is causing the is...

Hi, We've never seen anything like this before. Are you using the recommended Java 8 or some later version? We use the Azul JDK which we haven't had any issues with. https://www.azul.com/downloads/?version=java-8-lts&os=macos&package=jdk#zulu If you install this then you should make sure you...

Hi, Just to clarify, you are saying.... 1. The Protege app stops accepting input from a keyboard after it has been running for a number of days? or 2. The Protege app stops accepting input from a keyboard after a few days, even if it is restarted? We all use Macs here and haven't come across this be...

Hi,

onTipShow is a function from the map library. You can find the documention for the map library here.

https://jvectormap.com/documentation/ja ... i/jvm-map/

Cheers

Neil

Hi xiaoqi, Thanks. I can see in the logs, your post was blocked by Cloudflare as it looked to that service like you were trying to perform an SQL injection attack. I'd suggest if you have this issue again in the future to post any code snippets in an attachment rather than inline. This seems to be r...

Hi xiaoqi, Can you let me know which country you were posting from and I'll look at the logs for anything special? Also, were you using a VPN which may have been hosted elsewhere? We use Cloudflare to provide a security layer to our web proprieties and it is this service which is blocking your submi...

Have you changed/updated Viewer at all? If so, which version and where did you download from - GitHub or our Website?

Hi, We typically only release the major increments to open source e.g. v6.18, v6.19 etc and not the interim releases e.g. v6.18.x unless there is an issue which we feel justifies the effort of packaging the OS release. 6.19 will be available in Q4 2023 and will include all the interim patches of the...

Hi Simon, If for any reason you do not see a blank repository snapshot in your tenant then you can download a blank repository from the website and import it using the Protege Import feature. https://enterprise-architecture.org/products/essential-open-source/essential-os-download/ It is about halfwa...

Hi,

Apologies this page got lost in our recent website update. I've updated the university link but here is a direct link to what your are looking for...

https://enterprise-architecture.org/sam ... nd-models/

Cheers

Neil

Hi Xiaoqi, I'm delighted to hear you have this working. For future reference, we have an Essential University page which covers the memory settings for Essential. You may need to review the settings as your repository grows. https://university.enterprise-architecture.org/configuring-memory Cheers, N...

Hi, I guess the key aspect of the error message is that it isn't saying "publish failed" but rather it is saying "no response". This typically means that Protege cannot connect to the Essential Viewer application in Tomcat. Before I proceed though, can I check you are definitely ...

Are you seeing any errors either in the Tomcat logs (either catalina.out, catalina.somedate or essential-viewer.log)?
Are there any errors in the terminal/command prompt with any further details?

Hi, If you contact Essential Support then they can set passwords to not expire for API accounts. This related article has some more details https://support.enterprise-architecture.org/support/solutions/articles/14000108215-accessing-the-essential-api-when-using-saml They will just need to know which...

Hi, Just to add a little more to the investigations here.... from the command line can you try running the following java -XshowSettings You should see something like file.encoding = UTF-8 Additionally, you could try modifying the connector in the Tomcat server.xml file (typically in the tomcat/conf...

Hi, We have tested today with a variety of operating systems and browsers and cannot replicate the issue you are seeing. For us, the special characters always render correctly. We have tested Windows 11/ Chrome Windows 11 / Edge Windows 11 / Firefox Windows 10/ Chrome Windows 10 / Edge Windows 10 / ...

Hi Tshitshi,

You can use this repository:

https://essential-cdn.s3-eu-west-2.amaz ... emo_os.zip

Cheers

Neil

Hi Christian, We are still having trouble recreating the character issue. A couple of questions.... Which browser are you using? Do you get the same issue in a different browser? Can you post a sample block of text here which is causing the problem (e.g. a description with some problem characters). ...

Hi,

We are aware of this and hope to have this fix next week.

Thanks for raising this.

Best regards

Neil

Hi Xiaoqi, Essential Open Source is supported on a best endeavours basis by the team. We need to balance this against customer demand from our commercial customers. Taking a look, I can see you have posted about 20 different questions in the past few weeks, most of which have a response fairly quick...

Hi Thierry, Short answer, yes. Updates via API update the active repository but you need to republish for the changes to be reflected in the Viewer snapshot. We have do have a Publish API which you could use to automate the Publish frequency. Reach out to the Essential Support team and they will get...

Hi, This View is deprecated as it depends on some software libraries that we no longer use called PlantUML and Graphviz. As this View is deprecated, we will not be updated or maintaining this View in the future. If you want to try getting this working, you can try installing Graphviz yourself. We ha...

Hi, There are lots of different non-Oracle Java JVMs these days. Just be sure to choose a Java 8 version for compatibility (Java 8 EOL is in 2030 whereas other (later) versions actually EOL earlier). Azul https://www.azul.com/downloads/?version=java-8-lts&package=jdk#zulu Adoptium (previously kn...

Hi John,

This isn't a capability we have right now but I'll add this to our feature requests backlog for discussion

Thanks

Neil

Hi Vivek, The Application Reference Model is not customisable via repository configuration but you can take a copy of the XSL file and easily modify it. Changing the styling would be straightforward for a developer with HTML and CSS experience. You can find a copy of all of our Views on our GitHub p...

Hi Christian,

You might find this document useful
https://enterprise-architecture.org/dow ... pec_v2.pdf

Cheers

Neil

Hi,

This feature is not used so much these days as people prefer to use the Essential Import Utility.

We do have some legacy documentation which I can point you at:

https://enterprise-architecture.org/ess ... on-tab.php

This might be enough to get you started

Cheers

Neil

Where on your file system is Tomcat located (i.e. what's the path)? Is it somewhere that's writable without Admin rights? On Windows, some folders require special rights (such as "Program Files"). Also OneDrive folders can cause permissions issues if syncing with another computer (usually ...

Hi,

Thanks for raising this. It's a known issue but we do have plans in place to improve this however we have some other dependent work to complete before we can address this. We hope to have this improved later in the year.

Cheers

Neil

Hi, Is your Essential Viewer WAR file in the Tomcat "webapps" folder called essential_viewer.war or essential_viewer_6162.war? The name of this file determines the URL you should use in Protege when publishing. You can either: 1. Rename the WAR file to essential_viewer.war in which case th...

Hi Vivek,

As this is a Cloud support question, we've picked this up via the ticketing system. You should receive an email shortly about this.

Cheers

Neil

Hi, Yes, you are correct. There is currently no strategic plan catalogue as the most common way to use these is in the context of a project or programme of work. I'll log this as a feature request. In the interim, I've put together a very basic one here which displays a list of plans and clicks thro...

Hi Liam,

Thanks for raising this. I'll log this as a bug for review and prioritisation for a future release.

Cheers

Neil

Hi, This isn't something we've noticed before. Perhaps an incompatibility or a recent software change we've made has caused this. Can you provide some details of the setup and we'll try to recreate this: Operating System Java Version Tomcat Version Import Utility Version Database and version Thanks ...

Hi,

That looks like a bug with some missing files in the release. We'll get that fixed when we ship the next release in a few weeks.

Cheers

Neil

Hi Gena,

My comment (back in 2013) was intended to indicate we would patch the documentation. We did do this as I can see the relevant lines in the View Manual for this view. The Org chart setup is usually a one time setup. Is this something else that you're having to work around.

Cheers

Neil

Hi,

The preview spreadsheet functionality was removed in a previous release. We may need to update our documentation to reflect this.

Cheers

Neil

Hi, You might want to start with Essential Launchpad which will provide you with a full spreadsheet and import specification for the most common aspects people capture. You can then copy and adapt it if necessary or just study the patterns for building your own. Just request Launchpad to import the ...

Hi Declan, Essential Open Source offers a basic REST API for the Import Utility to perform automated imports of XML/CSV/Excel. Essential Cloud/Docker offers a full sophisticated REST API for interacting with data and the platform. Due to platform constraints, we are not able to offer a full REST API...

A Protege project consists of 3 files. *.pprj, *.pins, *.pont. Project, Instances and Ontology. All three are required. If I recall correctly, inside the PPRJ are references to the file names of the related PINS and PONT file. If you rename the files outside of Protege then this can break the relati...

Hi, 1. Looking at the View code, they are not sorted in any way. They will appear pseudo-randomly based on the contents of the repository snapshot. 2. I've raised this as a bug for review/fixing in a future release. 3. I believe the default is "today" (which maybe is showing as tomorrow - ...

Hi Jean Marie, 1. This is mostly an artefact of the original implementation of multi-language capabilities for Essential. We are looking at this for other parts of the overall Essential platform and will adopt more standard approaches in those components. Once we have some experience in those "...

Hi Carlo, We feel that although the drawing paradigm can be really useful for certain modelling aspects, it tends not to scale very well. This is especially true where you cross modelling domains (Business, Application, Info/Data, Tech) where you can quickly run into dozens or hundreds of relationsh...

Have you also uploaded the associated import specification for that spreadsheet?

It looks like you might have missed that step.

Cheers

Neil

Hi, We're looking for the community's support to help with the translation of Essential Viewer. We have a XML translation files for the following languages ar-sa.xml da-da.xml da-dk.xml de-de.xml en-gb.xml en-us.xml es-es.xml fr-fr.xml lt-lt.xml pt-br.xml pt-pt.xml If you can help in any way, then p...

Hi, We're looking for the community's support to help with the translation of Essential Viewer. We have a XML translation files for the following languages ar-sa.xml da-da.xml da-dk.xml de-de.xml en-gb.xml en-us.xml es-es.xml fr-fr.xml lt-lt.xml pt-br.xml pt-pt.xml If you can help in any way, then p...

Hi,

Could you try changing the JDBC class drive name

From: com.mysql.jdbc.Driver
To: com.mysql.cj.jdbc.Driver

Recent versions of the JDBC driver use a different name for the driver
https://dev.mysql.com/doc/connector-j/8 ... anges.html

Let me know how you get on with this

Best regards

Neil

Hi,

Could you try changing the JDBC class drive name

From: com.mysql.jdbc.Driver
To: com.mysql.cj.jdbc.Driver

Recent versions of the JDBC driver use a different name for the driver
https://dev.mysql.com/doc/connector-j/8 ... anges.html

Let me know how you get on with this

Best regards

Neil

Hi, Could you try changing the JDBC class drive name From: com.mysql.jdbc.Driver To: com.mysql.cj.jdbc.Driver Recent versions of the JDBC driver use a different name for the driver https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-api-changes.html Let me know how you get on with this Best reg...

Hi, I'm going to assume you are using Windows given you mentioned Java.exe. If you open the Protege.lax file in a text editor, you will see a reference to the JVM which Protege is currently using. For example: lax.nl.current.vm=..\\Protege_3.5\\jre\\bin\\java.exe The example above shows a relative p...

Hi, I can try and recreate the issue but that's not a quick answer I'm afraid as I'd need to find time to set this up. We don't use Essential Open Source on linux Internally although many of the community do so finding an answer to this may take some time. We have used it extensively on Windows and ...

Hi,

This might be stretch but have you tried the JDBC driver for Ubuntu 18?

mysql-connector-java_8.0.29-1ubuntu18.04_all.deb

https://dev.mysql.com/downloads/connector/j/

I'll try and investigate this further to see what I can find.

Cheers

Neil

Hi jperrygodfrey, Are you using the built in Java with Protege or an external Java for Protege? If you are using the built-in Java then they will not be able to communicate via SSL/TLS unless you add the SSL/TLS certificate to the Java trustStore using the keytool command at the command line. I have...

Thanks for the feedback, we'll review and test this fix.

Cheers

Neil

Hi boumako,

It sounds like some files which don't belong in Essential Open Source have made it into the release. These files may be source of the issue.

I'll take a look at get back to you on this.

Cheers

Neil

Hi Ben,

Ah that's a good spot. Thanks for letting us know.

Cheers

Neil

Hi,

This appears to be an oversight on our part. They should be published at our GitHub site but it seems like our build process is excluding them.

We'll look into this an get the next sources in the next release

https://github.com/essentialproject/essential_viewer

Neil

Hi JROC, Did you get this working yet? Have you renamed your JDBC driver to "driver.jar"? At startup, Protege is looking for a JDBC driver called driver.jar (or driver1.jar or driver2.jar). From the Docs... 3. JDBC Drivers Install the required JDBC drivers as per the instructions supplied ...

Hi Keith,

Thanks for raising this. We'll see if we can replicate this. We haven't yet released the v6.15 of Essential Open Source so you are probably best continuing with v6.14 for now.

We'll take a look and report back

Thanks

Neil

Hi Gregg, The "file not found" issues for the Data Set APIs were a bug in that version of the release. They should not cause any practical issue and I believe they are resolved in the 6.15 release. Updating the meta- model from 6.14 to 6.15 should resolve this. A newer build v6.15 of Essen...

Updated versions of Viewer and Import Utility are now available to download via the site which address this issue.

Cheers

Neil

Hi, Are there any errors shown in the Javascript console of the browser? To open the developer console in Google Chrome, open the Chrome Menu in the upper-right-hand corner of the browser window and select More Tools > Developer Tools. You can also use Option + ⌘ + J (on macOS), or Shift + CTRL + J ...

Hi, Unfortunately this is not currently possible using Essential Cloud's print to PDF functionality however we have some planned updates to this functionality which should address this in the future. However, if you are using the Chrome browser, you can print to PDF directly from there. You may have...

Hi, In the open-source version, it's best practice with Essential Viewer to store any modifications to core files in the /user as this makes upgrading very simple. In Essential Cloud (and open source as well), we include a blank file called custom.css in the /user folder. This css file is loaded AFT...

We're not really familiar with those scripts but I've just taken a quick look through them. Are you perhaps trying to publish to HTTPS instead of HTTP? This can definitely cause issues. To publish via HTTPS the Protege client will need to have access to the same SSL certificate used by Viewer in Tom...

Hi Mike, View Library is a report much like any other view and therefore you should be able to apply the same security you have applied elsewhere. In the list of Report instances, it is called "Core: View Library". Currently, there is no way to prevent a user from accessing the main reposi...

Hi Keith,

The update for this issue is now available to download. It's just the Viewer package (v6.11.2)

https://www.enterprise-architecture.org/os_download.php

Thanks for raising this. Let me know how you get on with this update.

Thanks

Neil

Hi Keith,

Thank you for sending the detailed logs, they have helped us identify a bug when using on Windows for which we have developed a fix. We're just progressing through testing and packing so hope to have this out tomorrow.

Thanks

Neil

Hi Keith, We've done a bunch of testing here with repositories with many special characters in multiple languages to see if we can replicate this but so far everything seems to be as expected. Is it possible this is just a typo problem? The Viewer WAR file should be called " essential_viewer_61...

Hi Keith,

Can I ask if you've tried a restart of Tomcat to fix this?

Cheers

Neil

This sounds like either Tomcat isn't running or the Viewer web app can't be found. Does the name of the Viewer web app match the URL? For example, if your web app is called essential_viewer then the URL in Protege would be http://localhost/essential_viewer however if your web app is called essential...

Hi Keith, Essential Viewer makes an external call to check if there are any updates to Essential. It looks like from the trace that Viewer couldn't make that call. If you're working in an offline situation then you can edit the common/core_footer.xsl file to disable this feature. Comment out the fol...

Hi Tshitshi,

It should be the top of the list. Perhaps you have a browser cache problem?

See screenshot attached.

Maybe try a private browsing tab?

Cheers

Neil

Hi Tshitshi,

We have replied to your original post regarding this here....

https://www.enterprise-architecture.org ... =21&t=2426

Cheers

Neil

Hi Tshitshi, We have identified the issue which you are experiencing and have just released two updates which should resolve this for you. The updates are for the meta-model and the import utility. You will need to apply both updates to fix the issue. The release notes can be found here https://www....

Hi Tshitshi,

We have a fix for that in the next release. I've attached the file here which goes in the "common" folder.

Thanks for bringing this to our attention.

Cheers

Neil

Making a contribution You can submit any contributions directly on this forum as a ZIP file attachment or for the more technically inclined, on GitHub by branching and issuing a pull-request. https://github.com/essentialproject/essential-contributions. Don't forget to include some form of readme.tx...

Hi John, Thanks for sharing your repository. That helped identify the issue. In a previous upgrade of Essential we replaced an older version of the Application Reference Model with a newer version (the older version can be found by editing the URL to show application/core_al_app_ref_model_v1.xsl). A...

Hi John, The ext folder should not be there in open-source. That's a bug but not one which would cause this issue. Would you be willing to share a copy of your repository to allow us to diagnose the problem? If so, you may wish to sanitise any especially sensitive information before doing so. We wil...

Hi John,

The footer of the penultimate screenshot suggests that you're still on 6.10.1. Has the v6.10.2 not deployed correctly for you or perhaps you need to changes the URL?

Cheers

Neil

Thanks for these. Can I ask you to look in the browser console and let me know if there are any errors shown.

In Chrome you can get to the console by clicking on the Menu icon > More tools > Developer tools.
In Edge you can click F12

Thanks

Neil

Can you post a screenshot of the error

Hi John,
Pretty sure you’ll find that fixed in 6.10.2
Cheers,
Neil

Hi John, Thanks for raising this. This is a bug and we have just pushed a point release for Viewer (v6.10.2) which address this as well as some minor issues for handling special characters in Views. You can either download the latest version or if you'd rather just address the log issue in the versi...

Hi,

It's possible that you have an problem WAR file. I do recall a packaging issue with the 6.9 release at some point which we resolved.

Can I suggest you try downloading again from the website?
https://www.enterprise-architecture.org/os_download.php

Neil

Hi, We would strongly recommend using the WAR file from the website which is packaged to use as a web app. The GitHub download is a ZIP which must be unzipped and repackaged to use in Tomcat so we wouldn't recommend that unless you know what you're doing there. I'd recommend downloaded the 6.9 WAR f...

Hi, Thanks for the feedback. We really welcome the input but have no immediate plans to implement this specifically given the wide variance of SAML solutions (ADFS, Okta, Ping, etc) our customers currently use. We will keep this under review and let you know if we have anything more to share in this...

Hi Tshitshi, We've been unable to reproduce the errors you've listed which suggests there is something particular about your data that is causing these issues. Would it be ok if my colleague Jason Powell contacted you directly to discuss these so we are able to identify the root cause of the problem...

Hi Keith, The log file you will need to look at is called catalina.out (or catalina.somedate.log). Can you take a look in there and let us know if you see any errors there. One minor thing to consider is that the Viewer download is called essential_viewer_692.war which will deploy as an application ...