Aspnet_compiler.exe returned error code 1 during update

Description

An error related to aspnet_compiler.exe occured during update

check the installation logs %temp%\SetupLogXXXXXXXX.txt 

2021-06-04 14:52:03.740   -- Operation -- 
2021-06-04 14:52:03.740   Name: PIOPrecompileIISAppForBib 
2021-06-04 14:52:03.740   Executing: "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe" -m /LM/W3SVC/1/ROOT/fwbib 
2021-06-04 15:00:15.567   Execution completed with return code: 1 
2021-06-04 15:00:15.567   This is an error return code. 
2021-06-04 15:00:15.567   Operation failed. 
2021-06-04 15:00:15.567   [ERROR] Program "aspnet_compiler.exe" returned error code 1.

Cause "The file does not exist"

This error occur when you try to execute this command in a Command Prompt "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe" -m /LM/W3SVC/1/ROOT/fwbib
 

Setup could fails on update when a corrupted Call Analytics info file was created previously
<IUCS Root>\Apps\BillyBlues\Engine\Web\BINFO

Solution "The file does not exist"

Delete this folder and click on retry

<IUCS Root>\Apps\BillyBlues\Engine\Web\BINFO

Cause  "Could not execute CVTRES.EXE"

In some cases, the same error could appears if Windows permissions are not enough to execute the installation correctly. 

This error occur when you try to execute this command in a Command Prompt "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe" -m /LM/W3SVC/1/ROOT/fwbib

Solution "Could not execute CVTRES.EXE"

If it is the case, or, if you are not sure about execution permission level allowed, run the Installation package as "SYSTEM" user as reported here