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Unable to load wwDotNetBridge
Gravatar is a globally recognized avatar based on your email address. Unable to load wwDotNetBridge
  Luca
  All
  Jun 10, 2022 @ 10:34pm

Dear Rick,
a procedure that has always worked well on server, suddenly returns an error most evenings:

the error exits from this procedure in WwDotNetBridge.prg:

************************************************************************
* wwDotnetBridge ::  Init
****************************************
***  Function: Initializes the .NET runtime inside of FoxPro
***    Assume: Calls Load() to actual perform load operation
***      Pass: lcVersion -  specific .NET Version or
***                         simplified "V2", "V4"
***            llUseCom  -  if .T. loads .NET Bridge via
***                         plain COM interop rather than 
***                         hosting .NET runtime itself.
***                         If you do COM 
***    Return: nothing
************************************************************************
FUNCTION Init(lcVersion, llUseCom)

IF !EMPTY(lcVersion)
   LOCAL lcShortVer
   lcShortVer = UPPER(lcVersion)
   DO CASE 
   	CASE lcShortVer == "V4"
   	  lcVersion = "v4.0.30319"
	CASE lcShortVer == "V2"
      lcVersion = "v2.0.50727"     
   ENDCASE

   this.cClrVersion = lcVersion
ENDIF   
this.lUseCom = llUseCom

*** Fail creation if the object couldn't be created
IF ISNULL(this.Load())
   ERROR "Unable to load wwDotNetBridge: " + this.cErrorMsg
   RETURN .F.
ENDIF

ENDFUNC

If I restart the server the procedure works without error.
Please how to fix it?
Thank you very much for support

Gravatar is a globally recognized avatar based on your email address. re: Unable to load wwDotNetBridge
  Luca
  Luca
  Jun 13, 2022 @ 09:31am

Is there no one here anymore?

Gravatar is a globally recognized avatar based on your email address. re: Unable to load wwDotNetBridge
  Rick Strahl
  Luca
  Jun 13, 2022 @ 10:23am

Check your path and make sure that your application hasn't changed path and can't find the DLL.

More info here:

+++ Rick ---

Gravatar is a globally recognized avatar based on your email address. re: Unable to load wwDotNetBridge
  Luca
  Rick Strahl
  Jun 13, 2022 @ 09:32pm

Dear Rick,
it is a procedure that has been working on the server for years without problems, nothing has changed, in fact if I restart the server the error doesn't come out anymore.
I think it is a problem with the server.
Is it possible that the .Net libraries got corrupted?
How to reinstall them?
Many thanks again!

Gravatar is a globally recognized avatar based on your email address. re: Unable to load wwDotNetBridge
  Rick Strahl
  Luca
  Jun 14, 2022 @ 09:06pm

Very unlikely unless you're out of memory.

Again I would check for a changed path. Wrap the call/instantiation, then write out error information into the trace log.

+++ Rick ---

Gravatar is a globally recognized avatar based on your email address. re: Unable to load wwDotNetBridge
  Luca
  Rick Strahl
  Jun 14, 2022 @ 10:48pm

Dear Rick,
I followed the solutions showed into your article "Unable to load CLR Instance Error", although I don't understand why the application works correctly for years.

  • I tried MyApp.exe.config solution
  • I tried blocked .NET dll solution (also with Powershell)
  • I checked wwdotnetbridge.dll and wwipstuff.dll are in application path
    The only strange thing that is found is that by checking .NET version installed with
DO wwDotnetBridge
loBridge = GetwwDotnetBridge()
? loBridge.GetDotnetVersion()

I get .NET version 4.0.30319.42000 as result (wwDotNetBridge.dll version is 6.05).
If I try to install .NET Framework 4.5 setup says 4.5 version is already installed in the system.
The CLR instance error comes out when the application tries to send emails, I think I will abandon this solution in favor of downloading the file.
This seems to me a safer and more lasting solution.
Many thanks again for support, I couldn't work if there was no West Wind Web Connection!

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