Cannot Reserve a Task

While reserving a task, you get the error message:

Something went wrong

Terminating "Reserve" due to a detected fatal discrepancy...

If you have no pending changes, the quickest fix will often be to disconnect the workset and download a new. If that doesn't help, there is an error in the model on the server and you can try the following:

If you look in the process window, you will most likely see a message there telling which object or netelement is the problem.

To fix this on the server, Trimble Support will need you to do the following:

First, be sure that you are showing "Internal values" in the Properties window: click the cogwheel on top of the Properties window and check "Internal values".
Then find and report the below information.

Which server the model is on. "Quadri" is not a server name! If you don't know the server name, go to Model Manager and you will see it on the first page. Or click the cloud symbol in the Explorer window and click "Details" in the Properties window. Send the "Host name..." and the "OrganizationID".
The name of the model and project.
The netelement id or object id/object type. Click the line in the process window and find the number and type of the netelement id or object in the Properties window. These are the values "Object ID" and "Object type ID" under "Internal values" in the Properties window and both are numbers.
The task number owning that netelement or object. To find this, select the netelement (by double clicking the error line in the process window) or the object (by right clicking the cloud symbol of the workset in the Quadri Explorer window and selecting "Select object ID").
Look in properties for the parent task. Then select that task (by clicking the 3 dots in the right part of the field in Properties showing the parent task) to find the ID of that task.
By doing this and sending that information, Trimble Support can fix the problem without having to download the project.
After Trimble Support has fixed the problem, you need to download a new workset to be able to reserve this task.

See: how to contact Trimble Support.

NB! This problem often is related to WS tasks in Novapoint. If you are working with WS, please take a look at this: Best Practices.