Installation of an IOS App fails with MDM error -45

Question

We want to install an internal App to our iPads.

On some iPads I get the error

An MDM command could not be executed.

-45

Completely failed

On details I see:

InstallApplication

Error

[12026][MCMDMErrorDomain]The app “com.stoll.stollsd” is already scheduled for management.

Jul 20, 2015 7:03 AM

But there is no scheduled job. I restarted the iPad. I restarted the server. Other Apps I can install on the iPad.

Where is here the mistake?

Thanks Torsten

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Andrew Mullins · Answer

i have had this issue too on many app installs from the app store and internally developed apps. 
 the solution i found to the error below when attempting to create a task "when no other tasks were visible in SMC" was to power off the device, leave it 60 seconds and power it back on, then look on the home screen for an app struggling to install (the strugling app wasn't visible on the device previous to power off), press and delete this app from the device then try install from SMC again, worked 100% 
 "An MDM command could not be executed. -45 Completely failed" and in details: "[12026][MCMDMErrorDomain]The app &ldquo;my.App.v102.Prod&rdquo; is already scheduled for management."