[IronPython] Internal Assembly Dependency

[Curt Hagenlocher]

Is it possible that the assembly has been compiled targeting specifically
x86 and you're running a 64-bit process (or vice versa)?

2010/5/27 Bakalar, Matthew (NIH/CIT) [C] <bakalarmh at mail.nih.gov>

>  Thanks for the suggestion, I tried the bug fix suggested on the link you
> posted. clr.LoadAssemblyFromFile does not throw an exception, but it also
> doesn't return an assembly (in contrast, calling clr.LoadAssemblyFromFile
> for a different assembly in the same directory returns an object that prints
> itself as: <Assembly Target, Version=1.0.0.0, Culture=neutral,
> PublicKeyToken=null>)
>
> I have been picking through the log files, but I am inexperienced
> interpreting them. The first log item shows an error, but after that I
> receive two log items that claim "The operation was succesful. Bind result:
> hr = 0x0." To confuse matters, at the end of these "successful" log entries
> is the line:
>
> LOG: IJW assembly bind returned file not found.
>
>
>
> I looked up the error in the first log message, hr = 0x80070002. I found a
> reference at http://blogs.msdn.com/b/suzcook/archive/2003/05/29/57120.aspxthat suggests it is actually a FileNotFoundException. Would this error ever
> be thrown when the assembly did actually exist? As I said before, I'm using
> it from this location with pure C# code. I have double checked my sys.path
> to make sure it includes the folder where the assembly is located. Could the
> problem be in the naming of the assembly?
>
>
>
> For reference sake, I am running windows vista x64.
>
>
>
> Thanks
>
>
>
> Matthew Bakalar
>
>
>
> The following items are logged when I attempt to load the problem assembly:
>
>
>
> *** Assembly Binder Log Entry  (5/27/2010 @ 4:39:16 PM) ***
>
>
>
> The operation failed.
>
> Bind result: hr = 0x80070002. The system cannot find the file specified.
>
>
>
> Assembly manager loaded from:
> C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
>
> Running under executable
> C:\Users\bakalarmh\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Microsoft\IronPython
> Tools for Visual Studio\0.2\RemoteScriptFactory.exe
>
> --- A detailed error log follows.
>
>
>
> === Pre-bind state information ===
>
> LOG: User = NIH\bakalarmh
>
> LOG: DisplayName = MathNet.Iridium, Version=2008.8.16.470, Culture=neutral,
> PublicKeyToken=c061a3ec32cc0c6f
>
>  (Fully-specified)
>
> LOG: Appbase =
> file:///C:/Users/bakalarmh/AppData/Local/Microsoft/VisualStudio/10.0/Extensions/Microsoft/IronPython
> Tools for Visual Studio/0.2/
>
> LOG: Initial PrivatePath = NULL
>
> LOG: Dynamic Base = NULL
>
> LOG: Cache Base = NULL
>
> LOG: AppName = RemoteScriptFactory.exe
>
> Calling assembly : (Unknown).
>
> ===
>
> LOG: This bind starts in default load context.
>
> LOG: No application configuration file found.
>
> LOG: Using host configuration file:
>
> LOG: Using machine configuration file from
> C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
>
> LOG: Post-policy reference: MathNet.Iridium, Version=2008.8.16.470,
> Culture=neutral, PublicKeyToken=c061a3ec32cc0c6f
>
> LOG: The same bind was seen before, and was failed with hr = 0x80070002.
>
> ERR: Unrecoverable error occurred during pre-download check (hr =
> 0x80070002).
>
>
>
> *** Assembly Binder Log Entry  (5/27/2010 @ 4:39:16 PM) ***
>
>
>
> The operation was successful.
>
> Bind result: hr = 0x0. The operation completed successfully.
>
>
>
> Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
>
> Running under executable  C:\Users\bakalarmh\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Microsoft\IronPython Tools for Visual Studio\0.2\RemoteScriptFactory.exe
>
> --- A detailed error log follows.
>
>
>
> LOG: IJW explicit bind. File path:C:\Users\bakalarmh\Documents\NIH Dropbox\My Dropbox\Target\Target\bin\Debug\MathNet.Iridium.DLL.
>
> LOG: IJW assembly bind returned file not found.
>
>
>
> *** Assembly Binder Log Entry  (5/27/2010 @ 4:39:16 PM) ***
>
>
>
> The operation was successful.
>
> Bind result: hr = 0x0. The operation completed successfully.
>
>
>
> Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
>
> Running under executable  C:\Users\bakalarmh\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Microsoft\IronPython Tools for Visual Studio\0.2\RemoteScriptFactory.exe
>
> --- A detailed error log follows.
>
>
>
> LOG: IJW explicit bind. File path:C:\Users\bakalarmh\Documents\NIH Dropbox\My Dropbox\Target\Target\bin\Debug\MathNet.Iridium.dll.
>
> LOG: IJW assembly bind returned file not found.
>
>
>
>
>
>
>
>
>
>
>
>
>
> *From:* Curt Hagenlocher [mailto:curt at hagenlocher.org]
> *Sent:* Thursday, May 27, 2010 4:14 PM
>
> *To:* Discussion of IronPython
> *Subject:* Re: [IronPython] Internal Assembly Dependency
>
>
>
> The bug at
> http://ironpython.codeplex.com/WorkItem/View.aspx?WorkItemId=26793 suggests
> you might have success with clr.LoadAssemblyFromFile. Otherwise, you might
> be able to use the Fusion log viewer (
> http://msdn.microsoft.com/en-us/library/e74a18c4(VS.80).aspx) to debug the
> assembly load process.
>
> 2010/5/27 Bakalar, Matthew (NIH/CIT) [C] <bakalarmh at mail.nih.gov>
>
> In response to Lukas:
>
> I copied all of the assemblies, along with the script, to one folder. I
> attempted to add a reference to MathNet.Iridium and received the following
> error:
>
>
>
> >>> clr.AddReferenceByPartialName('MathNet.Iridium')
>
> Traceback (most recent call last):
>
>   File "<stdin>", line 1, in <module>
>
> IOError: System.IO.IOException: Could not add reference to assembly
> MathNet.Irid
>
> ium
>
>    at
> Microsoft.Scripting.Actions.Calls.MethodCandidate.Caller.Call(Object[] arg
>
> s, Boolean& shouldOptimize)
>
>    at
> IronPython.Runtime.Types.BuiltinFunction.BuiltinFunctionCaller`2.Call1(Cal
>
> lSite site, CodeContext context, TFuncType func, T0 arg0)
>
>    at
> System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite s
>
> ite, T0 arg0, T1 arg1, T2 arg2)
>
>    at
> IronPython.Runtime.Types.BuiltinFunction.BuiltinFunctionCaller`2.Call1(Cal
>
> lSite site, CodeContext context, TFuncType func, T0 arg0)
>
>    at
> IronPython.Compiler.Ast.CallExpression.Invoke1Instruction.Run(InterpretedF
>
> rame frame)
>
>    at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame
> frame)
>
>    at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0,
> T1 a
>
> rg1)
>
>    at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
>
>    at IronPython.Compiler.PythonScriptCode.Run(Scope scope)
>
>    at
> IronPython.Hosting.PythonCommandLine.<>c__DisplayClass1.<RunOneInteraction
>
> >b__0()
>
>
>
> This leads me to believe IronPython is having trouble loading this
> particular assembly, but I cannot decode the error message. Have you ever
> seen this trace before?
>
>
>
> In Response to David:
>
> I tried the solution you suggested with no luck. The error message I
> receive is the same. I suspect that the hint I've provided above might lead
> us to a solution.
>
>
>
> Thanks All,
>
>
>
> Matthew Bakalar
>
>
>
> *From:* Lukas Cenovsky [mailto:cenovsky at bakalari.cz]
> *Sent:* Thursday, May 27, 2010 2:48 AM
> *To:* Discussion of IronPython
> *Subject:* Re: [IronPython] Internal Assembly Dependency
>
>
>
> Bakalar, Matthew (NIH/CIT) [C] wrote:
>
> Hello All,
>
> I am new to IronPython, relatively new to C#, and new to this list. I have
> a C# assembly that I am attempting to access from IronPython. I am able to
> load the assembly using:
>
> clr.AddReferenceToFileAndPath(mypath)
>
> without any problems. I can then import the classes that reside within my
> assembly as well, create instances of these classes, and call certain
> methods on these instances. There are methods within this assembly that rely
> on a reference to another assembly (MathNet.Iridium). When I attempt to call
> these methods from my IronPython script, I receive the following error:
>
> IOError: [Errno 2] Could not load file or assembly 'MathNet.Iridium,
> Version=2008.8.16.470, Culture=neutral, PublicKeyToken=c061a3ec32cc0c6f' or
> one of its dependencies. The system cannot find the file specified.
>
> Now, I never added a reference to MathNet.Iridium in my script. However, I
> assumed that the C# assembly that I am calling directly was compiled with a
> reference to this other assembly, and that I would not have to explicitly
> add a reference. When I create a test assembly entirely in C# that calls the
> assembly I am attempting to call, and do not include a reference to the
> MathNet.Iridium assembly, I am able to execute the code without problems. Do
> I need to add a reference to the MathNet.Iridium assembly from within my
> IronPython script even though I don't intend to access it directly?
>
> Thanks
>
> Matthew Bakalar
>
>
> First, try to copy all necessary assemblies to the folder with your script
> and use AddReference for all of them. If that works, you can experiment with
> assemblies in different folders.
>
> Note, the path in AddReferenceToFileAndPath should be full path.
>
> --
> -- Lukáš
>
>
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