The Bootstrapper Process return code is (21)
02/09/18 12:56:46:797 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Build Version - 1.13.0.59
02/09/18 12:56:46:797 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Logging Level verbosity Set to 4
02/09/18 12:56:47:452 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Successfully fetched the optionXML content from MSI database ...
02/09/18 12:56:48:404 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | MSI ProductCode ({AC76BA86-1033-FFFF-7760-0C0F074E4100}) is not installed on the system ...
02/09/18 12:56:48:404 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | The install language for Acrobat (APRO18.0) from the fallback map (en_US)
02/09/18 12:56:48:404 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Bootstrapper launch location is :: I:\Acrobat\Build\ASU\Set-up.dat
02/09/18 12:56:50:432 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Build Version - 1.13.0.59
02/09/18 12:56:50:432 | [INFO] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | Logging Level verbosity Set to 4
02/09/18 12:56:50:432 | [ERROR] | | ASU | MSIInvoker | MSIInvoker | | | 3168 | The Bootstrapper Process return code is (21).Stopping the installation process.
