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ArcGIS Pro 2.5: “analyze mosaic dataset” tool ends up with “references files are inaccessible” error,

JamalNUMAN

The “analyze mosaic dataset” tool ends up with “references files are inaccessible” despite the fact that the folder where the images are saved is shared and accessible as shown in the screenshots below.

What could be the issue here?

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JamalNUMAN

Hi Robert,

All has been performed in Pro.

You can replicate the issue if you consider the folder structure shown in the screenshot below. Just try it with any imageries of you choice and the issue will appear

OrthophotosImageries

Orthophoto_WestBank_2018

Folder containing the imageries:

Orthophoto_WestBank_2018_Aerial_25cm_jpg_Palestine1923GridCassiniClarke

gdb

Orthophoto_WestBank_2018_Aerial_25cm_jpg_Palestine1923GridCassiniClarke

Mosaic

Orthophoto_WestBank_2018_Aerial_25cm_jpg_Palestine1923GridCassiniClarke

Robert LeClair

Was the mosaic dataset created with ArcMap and if so, what release? 10.5? 10.6? Are you using ArcGIS Server as well and if so, what release? The reason I ask is there's an ArcGIS 10.7 Mosaic Dataset Compatibility Patch that "might" be the fix. If not, I'll keep digging.

JamalNUMAN

Thanks Robert.

Sticking the physical path of the data contained in the mosaic dataset nor “repair mosaic dataset path” tool resolve the issue. The same error persists to exist

what could be the issue here?

Robert LeClair

In the last graphic for Repair Mosaic Dataset interface, click the open folder far right next to each mosaic dataset path and path it to where the mosaic dataset resides. I realize it could be in the same referenced path as the old path but try and see if it resolves the issue.

There's also a Repair Mosaic Dataset Paths GP tool you could use to accomplish the same task.

JamalNUMAN

The “the mosaic dataset item references files that are inaccessible” error persists to exist despite the fact that all the content of the mosaic are referenced with their UNC.

What could be the issue here?

JamalNUMAN

Many thanks for the input.

Correct. This is what I have done literally! I have been working with UNC path but not a mapped network drive letter as it is shown in my screenshots above. Nevertheless, I got that very frustrating error

By the way, I have shared all my D drive and all the steps are performed by communicating the machine with UNC path

\\Jamalnuman\d\Ramallah_2011_50cm_TMGrid_jpg

mvolz47

Jamal:

Did you originally add your rasters and create your overviews with a mapped network drive or unc path?

I just created a new folder on a network drive and copied some image files to this folder. I then created a folder connection in Pro using a unc path and not a mapped network drive as I would like to create an image service from this RMD. I then created a new file gdb in Pro and created a new RMD in Pro inside the new file gdb. I then added the Rasters to the RMD with the unc path. I then created the overviews with the destination for the overviews also being written to the unc path. The RMD worked perfectly and when I ran the Repair function on the RMD, it was still using the unc path.

So if you have not already done so, I would make sure all operations pertaining to the RMD (adding rasters and creating overviews) are done with a folder connection defined by a unc path and not a mapped network drive letter.

JamalNUMAN

Hi Robert,

All what I did is that I added the images to the mosaic with their UNC path instead of non-UNC path

Non-UNC path

\Imageries\Orthophoto_Gaza_2005_Satellite_100cm\Orthophoto_Gaza_2005_Satellite_100cm_jpg_Palestine1923GridCassiniClarke

UNC path

\\Jamalnuman\d\Imageries\Orthophoto_Gaza_2005_Satellite_100cm\Orthophoto_Gaza_2005_Satellite_100cm_jpg_Palestine1923GridCassiniClarke

Why should this generates all of these errors?

JamalNUMAN

Cont. for the steps

JamalNUMAN

Hi Michael,

The steps are illustrated in the screenshots below

JamalNUMAN

Thank you Majdoleen for the help.

Changing the overview path fails and sticks to the UNC path and thus the error persists to exist

MajdoleenO_A__Awadallah

You need to repair the path for the overviews and set it to read from the original path and not from the shared folder, this will solve the issue!! But I couldn’t figure out why it fails to read it from the shared folder!!

Also, you need to close the Acgis pro before publishing the map, and then open in and make sure that the aprx is opened from the network path and not the D drive.

mvolz47

Jamal:

Did you create the Raster Mosaic Datasets (RMDs) in ArcMap or Pro?

What is the workflow you have used thus far in processing your RMDs in Pro?

If you performed the same process of analyzing the RMD in ArcMap, would you have the same issue?

Robert LeClair

In reviewing some internal documents, one workflow to try to resolve is the following:

"Resolution: A mapped drive was used when adding image path to the mosaic dataset (MDS), and a folder may have been changed, thus resulting in the file path save in the MDS to be not accessible. We can Observe the Paths with the Export Mosaic Dataset Paths tool (1), and repair them with Repair Mosaic Dataset Paths (2), It's best practice to use UNC paths(3) to files in a MDS, and here is some documentation that may be applicable to NTSF or NAS Storage devices when used with ArcGIS Server (4) "

Supporting Documentation:
1 - Export Mosaic Dataset Paths - https://pro.arcgis.com/en/pro-app/tool-reference/data-management/export-mosaic-dataset-paths.htm
2 - Repair Mosaic Dataset Paths - https://pro.arcgis.com/en/pro-app/tool-reference/data-management/repair-mosaic-dataset-paths.htm

3 - Paths explained: Absolute, relative, UNC, and URL - http://desktop.arcgis.com/en/arcmap/10.3/tools/supplement/pathnames-explained-absolute-relative-unc-and-url.htm
4 - Choose a NAS device for ArcGIS Server - https://enterprise.arcgis.com/en/server/latest/install/windows/choosing-a-nas-device.htm

If this doesn't work, then I'll research a bit deeper.

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