[Jason Wilder]

All of a sudden I cannot start any of my service tiers (fortunately this is in test). Here is the error message:
Server instance: DynamicsNAV90
Tenant ID:
User:
Type: System.IO.IOException
Message: The process cannot access the file ‘C:ProgramDataMicrosoftMicrosoft Dynamics NAV90ServerMicrosoftDynamicsNavServer$DynamicsNAV90assemblyRecord5407_47.dll’ because it is being used by another process.
StackTrace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalDelete(String path, Boolean checkHost)
at Microsoft.Dynamics.Nav.Runtime.CSharpCompiler.CompileCSharpSourceToAssembly(String assemblyFileName, String[] sourceFileNames, Boolean deleteAfterRead, String& errors, Assembly& assembly)
at Microsoft.Dynamics.Nav.Runtime.AssemblyGetter.GetAssembly(ObjectType objectType, Int32 objectId, NavAppGroup appGroup)
Source: mscorlib
HResult: -2147024864

The object (in this case Record5407) seems to change each time.

We have 3 services tiers. I have restarted all of them, still same error. I have restarted SQL Server same error. I restarted all of the machines themselves same error. I compiled all objects (some didn’t compile but that is nothing new), still same problem. I can’t get a service tier to start to run the Object Tracking table. Maybe I should run the Object Tracking table in sql and delete everything and then re-compile again?

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Jason Wilder
Senior Application Developer
Stonewall Kitchen
York ME
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[Gino Pack]

What was trying to run just before this occurred? (You mention an object no – is it a table, report, XMLport, CodeUnit….)

Are all 3 service tiers on the same NAV Server Physical Environment?

Have you tried to go into SQL Activity Monitor and kill the process via SQL?

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Gino Pack
Director of Information Systems
Modern Optical International
ROSELLE IL
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[Jason Wilder]

Not much was going on.  I made a few changes to one codeunit periodically throughout the day.

The service tiers are on the same host.  We rebooted the host and all service tiers.

No process exists in SQL to kill.

I tried deleting the records in the object tracking table but can’t connect to service tier to recompile.  Suspect it does not have to do with this table.

I removed all the files in the C:ProgramDataMicrosoftMicrosoft Dynamics NAV90ServerMicrosoftDynamicsNavServer$DynamicsNAV90assembly directory but as soon as I start up the service tier I get the same message but it will list a different object each time.

Fortunately I back up our test environment every 6 hours so I will restore back an earlier version.  Just nervous in case this ever happens in our Live environment.  Microsoft, it you happen to see this please respond!

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Jason Wilder
Senior Application Developer
Stonewall Kitchen
York ME
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[Val Gameiro]

Have you tried these steps? If it happens again, I guess:

https://gallery.technet.microsoft.com/How-to-find-out-which-c0d4e60e

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Val Gameiro
Senior NAV Analyst
BPL Plasma
Austin, Texas
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[Jason Wilder]

I restored an earlier backup and still the problem persists (oh no!).  Then I realized that if I connect the service tier to a Cronus database on another server still same problem!

This leads me to think it is totally server related not NAV (possibly due to windows updates).  Any service tier (they are all vm’s) on that specific host does not work.  I pointed a service tier from a different host and it totally works.

Our IT department is on it now and I will posted the answer as soon as we have it.

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Jason Wilder
Senior Application Developer
Stonewall Kitchen
York ME
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[Jason Wilder]

Here is the solution and is pretty specific to our environment so others probably won’t run into this.  We have some software on those service tiers called Bit9.  It was denying access to the folder that nav uses to write some files.  We simply disabled the software and we are all set now.

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Jason Wilder
Senior Application Developer
Stonewall Kitchen
York ME
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[Jason Wilder]

It’s a year and a 1/2 later and I am getting the same error message in NAV 2018 upon service tier startup.  The problem this time is pretty much the same thing.  Our security software (now Carbon Black) was blocking access to the folder listed above.  The solution is to allow access through Carbon Black.  Wanted to mention again since the error message is a little misleading.

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Jason Wilder
Senior Application Developer
Stonewall Kitchen
York ME
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