The service cannot be activated

Error:
The service cannot be activated because it does not support ASP.NET compatibility. ASP.NET compatibility is enabled for this application. Turn off ASP.NET compatibility mode in the web.config or add the AspNetCompatibilityRequirements attribute to the service type with RequirementsMode setting as 'Allowed' or 'Required'.

Solution:
Add this line in top your Service class
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]

Following errors were detected during this operation

Error:
ERROR DETAILS
Following errors were detected during this operation.
* [7/13/2014 10:25:54 AM] System.ArgumentException
- Value does not fall within the expected range.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Internal.Isolation.IStore.LockApplicationPath(UInt32 Flags, IDefinitionAppId ApId, IntPtr& Cookie) 
...

Solution:
1- Uninstall or Remove old version of application
2- Clean this path of any files and folders
PATH: %HOMEPATH%\Local Settings\Apps\2.0\
AKA: C:\Users\XYZ\AppData\Local\Apps\2.0

Downloading .config did not succeed

Error:

- Downloading blah/blah/xyz.exe.config did not succeed

- Downloading .config did not succeed

PLATFORM VERSION INFO
Windows : 6.2.9200.0 (Win32NT)
Common Language Runtime : 4.0.30319.34003
System.Deployment.dll : 4.0.30319.33440 built by: FX45W81RTMREL
clr.dll : 4.0.30319.34003 built by: FX45W81RTMGDR
dfdll.dll : 4.0.30319.33440 built by: FX45W81RTMREL
dfshim.dll : 6.3.9600.16384 (winblue_rtm.130821-1623)

SOURCES
Deployment url : http://xyz.com/download/xyz.application
Server : Microsoft-IIS/7.5
X-Powered-By : ASP.NET
Deployment Provider url : http://xyz.com/download/xyz.application
Application url : http://xyz.com/download/Application%20Files/xyz_2_3_1_0/xyz.exe.manifest
Server : Microsoft-IIS/7.5
X-Powered-By : ASP.NET

IDENTITIES
Deployment Identity : xyz.application, Version=2.3.1.0, Culture=neutral, PublicKeyToken=91eae35baf867b49, processorArchitecture=msil
Application Identity : xyz.exe, Version=2.3.1.0, Culture=neutral, PublicKeyToken=91eae35baf867b49, processorArchitecture=msil, type=win32

APPLICATION SUMMARY
* Installable application.

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://xyz.com/download/xyz.application resulted in exception. Following failure messages were detected:
+ Downloading http://xyz.com/download/Application Files/xyz_2_3_1_0/xyz.exe.config did not succeed.
+ The remote server returned an error: (404) Not Found.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.

WARNINGS
There were no warnings during this operation.

OPERATION PROGRESS STATUS
* [7/13/2014 11:00:18 AM] : Activation of http://xyz.com/download/xyz.application has started.
* [7/13/2014 11:00:21 AM] : Processing of deployment manifest has successfully completed.
* [7/13/2014 11:00:21 AM] : Installation of the application has started.
* [7/13/2014 11:00:32 AM] : Processing of application manifest has successfully completed.
* [7/13/2014 11:00:49 AM] : Found compatible runtime version 4.0.30319.
* [7/13/2014 11:00:49 AM] : Request of trust and detection of platform is complete.

ERROR DETAILS
Following errors were detected during this operation.
* [7/13/2014 11:01:26 AM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
- Downloading http://xyz.com/download/Application Files/xyz_2_3_1_0/xyz.exe.config did not succeed.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
at System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
at System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState& subState, ActivationDescription actDesc)
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Inner Exception ---
System.Net.WebException
- The remote server returned an error: (404) Not Found.
- Source: System
- Stack trace:
at System.Net.HttpWebRequest.GetResponse()
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)

COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.

Solution:

This error related to IIS security about .config files. you must go to your visual studio Project > Properties > Publish > Options > and checked Use '.deploy' file extension checkbox ;-)

Plesk and forward www to non-www

Problem
- How to change www site to non-www with Plesk
- How to forward www site to non-www with Plesk
- How to forward www.domain.com to domain.com
- Where's Preferred Domain in new Plesk 11.0.9

Solution for Plesk 11.5
Click on Websites & Domains > Hosting Settings > and change Preferred domain to None

Solution for Plesk 11.0.9 and Older
Add DNS Record WWW > CNAME > DOMAIN.COM.