topic Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR in ArcGIS Enterprise Questions

error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Wed, 19 Aug 2020 15:14:43 GMT

Trying to figure out how to back up with webgisdr.properties, got this error. Have no clue what it means. I'm a desktop person, not a server person but I am the only server person there is in our organization.

Any help would be appreciated, I feel very stupid.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

JonathanQuinn — Wed, 19 Aug 2020 23:45:39 GMT

Can you post the full console output when running the tool? You can scrub any identifying information like machine names if you need to.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Thu, 20 Aug 2020 14:00:53 GMT

That's it. It stops before it gets started. I'm using the command syntax from this page: Create an ArcGIS Enterprise backup—Portal for ArcGIS (10.6) | Documentation for ArcGIS Enterprise

I must be doing something very dumb.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

JonathanQuinn — Thu, 20 Aug 2020 16:19:26 GMT

It seems like you moved the webgisdr.bat file into the root C:\ drive? The .bat file relies on libraries within the lib folder in the webgisdr folder (C:\Program Files\ArcGIS\Portal\tools\webgisdr). Can you try to run the DR tool from the C:\Program Files\ArcGIS\Portal\tools\webgisdr directory instead? You can still pass in the properties file from a separate directory.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Thu, 20 Aug 2020 18:16:23 GMT

Bingo! I knew I was doing something dumb. Now, I got past that, but I'm still doing something dumb. It says it can't access the file D:\TempPath\WebGISSite<xxxxxxxx>\server\<xxxxx>\<datetime>.agssite.

I guess it has to be a permissions issue but I can't figure out what I'm missing.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

JonathanQuinn — Thu, 20 Aug 2020 18:28:22 GMT

Are the components on separate machines? For example, Portal on one machine, Server on another? If so, you need to use a UNC path for the SHARED_LOCATION. The BACKUP_LOCATION can be on the local machine if you have enough space, or a UNC path.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Thu, 20 Aug 2020 19:43:28 GMT

OK, I started out with UNC path for the SHARED_LOCATION but got the following error: Cannot access the location \ipggis2k10data. It seemed to lose the " \\ " before the hostname and the " \ " between the hostname and the share. That's when I switched to a map drive location for the SHARED_LOCATION. Yes, Portal is on one machine, Server on another.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Thu, 20 Aug 2020 20:24:19 GMT

Ok, I played around with the SHARED_LOCATION backslashes - ended up putting four ahead of the hostname and two between the hostname and the share, and it worked. \\\\hostname\\share instead of the usual \\hostname\share

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

JonathanQuinn — Fri, 21 Aug 2020 23:51:35 GMT

Right, all back slashes have to be escaped. So \\ will turn into \\\\.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

AmyBrassieur — Sat, 22 Aug 2020 00:01:06 GMT

“Back slashes have to be escaped”.... Something that server people? Or developers? take for granted that lowly desktop users never hear about. A rule that’s been around forever, I imagine. I’ve been using personal computers since 1983, DOS 2.11 and if I ever heard about that, I forgot it.

Thanks for pointing me in the right direction, and explaining about the backslashes. I would have stayed stuck if you hadn’t dug me out of my hole. You have made me a success at webgisdr!

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

JonathanQuinn — Sat, 22 Aug 2020 00:05:34 GMT

Yeah, just an unfortunate requirement of the underlying language of the tool.

We can update the documentation to indicate any back slashes have to be escaped, and provide an example of doing so.

Re: error: could not find or load main class com.esri.arcgis.webgis.client.webGISDR

NiekGoorman1 — Wed, 14 Apr 2021 16:54:47 GMT

Just a quick note for anyone else's benefit: it seems like UNC paths are a hard requirement. I had the same Azure storage file share mapped to Z:\ on each of the three machines of our base deployment, but the utility still wouldn't run (with correct amount of slashes etc.). Replaced it with the UNC path and now it's started.