AzureDiagnostics fails after role udpate with no changes to configuration, error "Failed to parse the WAD config file"

Question

Windows event log shows AzureDiagnostics errors "Failed to parse the WAD config file" and warning "
No certficate with given thumbprint found in the certificate store. Thumbprint:" and
System.ArgumentNullException: Value cannot be null.
Parameter name: s
   at System.IO.StringReader..ctor(String s)
   at Microsoft.Azure.Plugins.Plugin.WadConfigValidator`1.Validate(String configString, String schemaPath, StringBuilder builder)
   at Microsoft.Azure.Plugins.Plugin.WadConfigValidator`1.Initialize(String configString, String schemaPath)
   at Microsoft.Azure.Plugins.Plugin.WadParser.Parse()
Also tried a different deployment on a different subscription, same issue, and this one gets stuck in 'create' state with no roles showing up in 'instances' section for quite some time. Are Cloud Services even maintained by Microsoft
anymore? Seems that they are second class citizens to VMs, no updates, no new portal, no new features, often can't update single role without updating all roles, etc.

Answer 1

i am facing same error : here is the log:
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Starting DiagnosticPlugin.exe DiagnosticPlugin-ShutdownEvent DiagnosticPlugin-TotalShutdownEvent -wadVer1v3
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Starting DiagnosticsPlugin
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Checking VM Type
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] File HandlerEnvironment.json not found. Extension set to PAAS
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] RcfFileName: C:\Config\881bb2e524c04870b4e993fd8fefb7d8.881bb2e524c04870b4e993fd8fefb7d8.WorkerRole1_IN_0.13.xml
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] RoleInstanceId: WorkerRole1_IN_0; DeploymentId: 881bb2e524c04870b4e993fd8fefb7d8; RoleName: WorkerRole1
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Checking VM Type
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] File HandlerEnvironment.json not found. Extension set to PAAS
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Store Size: 4096
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Reading XML configuration file
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Will use thumbprint 
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Decrypting private configuration
DiagnosticsPlugin.exe Warning: 0 : [3/19/2015 6:00:39 PM] No certficate with given thumbprint found in the certificate store. Thumbprint:
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:00:39 PM] Retrying after 30 seconds. Retry attempt 1
DiagnosticsPlugin.exe Warning: 0 : [3/19/2015 6:01:09 PM] No certficate with given thumbprint found in the certificate store. Thumbprint:
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:01:09 PM] Retrying after 30 seconds. Retry attempt 2
DiagnosticsPlugin.exe Warning: 0 : [3/19/2015 6:01:39 PM] No certficate with given thumbprint found in the certificate store. Thumbprint:
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:01:39 PM] Retrying after 30 seconds. Retry attempt 3
DiagnosticsPlugin.exe Error: 0 : [3/19/2015 6:02:09 PM] System.Security.Cryptography.CryptographicException: The enveloped-data message does not contain the specified recipient.
   at System.Security.Cryptography.Pkcs.EnvelopedCms.DecryptContent(RecipientInfoCollection recipientInfos, X509Certificate2Collection extraStore)
   at Microsoft.Azure.Plugins.Diagnostics.dll.PluginConfigurationSettingsProvider.DecryptPrivateConfig(String encryptedConfig)
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:02:09 PM] WadCfg is provided in initial configuration. Using that to initialize Diagnostics.
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:02:09 PM] <PublicConfig xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
  <WadCfg>
    <DiagnosticMonitorConfiguration overallQuotaInMB="4096">
      <DiagnosticInfrastructureLogs />
      <Directories scheduledTransferPeriod="PT1M">
        <IISLogs containerName="wad-iis-logfiles" />
        <FailedRequestLogs containerName="wad-failedrequestlogs" />
      </Directories>
      <PerformanceCounters scheduledTransferPeriod="PT1M">
        <PerformanceCounterConfiguration counterSpecifier="\Memory\Available MBytes" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\Web Service(_Total)\ISAPI Extension Requests/sec" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\Web Service(_Total)\Bytes Total/Sec" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\ASP.NET Applications(__Total__)\Requests/Sec" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\ASP.NET Applications(__Total__)\Errors Total/Sec" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\ASP.NET\Requests Queued" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\ASP.NET\Requests Rejected" sampleRate="PT3M" />
        <PerformanceCounterConfiguration counterSpecifier="\Processor(_Total)\% Processor Time" sampleRate="PT3M" />
      </PerformanceCounters>
      <WindowsEventLog scheduledTransferPeriod="PT1M">
        <DataSource name="Application!*" />
        <DataSource name="System!*" />
      </WindowsEventLog>
      <CrashDumps dumpType="Full">
        <CrashDumpConfiguration processName="WaAppAgent.exe" />
        <CrashDumpConfiguration processName="WaIISHost.exe" />
        <CrashDumpConfiguration processName="WindowsAzureGuestAgent.exe" />
        <CrashDumpConfiguration processName="WaWorkerHost.exe" />
        <CrashDumpConfiguration processName="DiagnosticsAgent.exe" />
        <CrashDumpConfiguration processName="w3wp.exe" />
      </CrashDumps>
      <Logs scheduledTransferPeriod="PT1M" scheduledTransferLogLevelFilter="Verbose" />
    </DiagnosticMonitorConfiguration>
  </WadCfg>
  <StorageAccount>vinaystorageaccounttest</StorageAccount>
</PublicConfig>
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:02:09 PM] Private setting is loaded
DiagnosticsPlugin.exe Error: 0 : [3/19/2015 6:02:09 PM] System.ArgumentNullException: Value cannot be null.
Parameter name: s
   at System.IO.StringReader..ctor(String s)
   at Microsoft.Azure.Plugins.Plugin.WadConfigValidator`1.Validate(String configString, String schemaPath, StringBuilder builder)
   at Microsoft.Azure.Plugins.Plugin.WadConfigValidator`1.Initialize(String configString, String schemaPath)
   at Microsoft.Azure.Plugins.Plugin.WadParser.Parse()
DiagnosticsPlugin.exe Error: 0 : [3/19/2015 6:02:09 PM] Failed to parse the WAD config file
DiagnosticsPlugin.exe Information: 0 : [3/19/2015 6:02:09 PM] DiagnosticPlugin.exe exit with code -106