Can anyone please help!
When I tried to run the code below, I got this error:
" Could not load file or assembly 'Microsoft.Z3, Version=4.0.0.0,
Culture=neutral, PublicKeyToken=9c8d792caae602a2' or one of its
dependencies. An attempt was made to load a program with an incorrect
format "
Here is the code:
class Program
{
static void Main(string[] args)
{
using (Context ctx = new Context())
{
RealExpr c = ctx.MkRealConst("c");
BoolExpr Eqzero = ctx.MkGt(c, ctx.MkReal(0));
BoolExpr Gezero = ctx.MkGe(c, ctx.MkReal(0));
BoolExpr Lttwo = ctx.MkLt(c, ctx.MkReal(2));
BoolExpr Gtthree = ctx.MkGt(c, ctx.MkReal(3));
BoolExpr b1 = ctx.MkBoolConst("b1");
BoolExpr b2 = ctx.MkBoolConst("b2");
BoolExpr b3 = ctx.MkBoolConst("b3");
BoolExpr b0 = ctx.MkBoolConst("b0");
RealExpr[] lamb = new RealExpr[1];
lamb[0] = ctx.MkRealConst("lamb");
BoolExpr temp = ctx.MkAnd(ctx.MkGt(lamb[0], ctx.MkReal(0)), ctx.MkEq(b0, ctx.MkTrue()), ctx.MkEq(b1, ctx.MkTrue()), ctx.MkGe(ctx.MkAdd(c, lamb[0]), ctx.MkReal(0)), ctx.MkLe(ctx.MkAdd(c, lamb[0]), ctx.MkReal(3)), ctx.MkGe(c, ctx.MkReal(0)), ctx.MkLe(c, ctx.MkReal(3)));
BoolExpr exist = ctx.MkExists(lamb, temp, 1, null, null, ctx.MkSymbol("Q2"), ctx.MkSymbol("skid2"));
Console.WriteLine(exist.ToString());
Solver s1 = ctx.MkSolver();
s1.Assert(exist);
if (s1.Check() == Status.SATISFIABLE)
{
Console.WriteLine("get pre");
Console.Write(s1);
}
else
{
Console.WriteLine("Not reach");
}
Console.ReadKey();
}
}
}
}
The easiest way is to use build.cmd script in examples/dotnet folder and modify it according to your need. The script copies Microsoft.Z3.dll and z3.dll to the working directory and compiles the code on the corresponding platform.
If you compile from Visual Studio:
Make sure that Microsoft.Z3.dll's version you reference matches with the platform (x86, x64,...) which you're compiling to. There are two Z3 versions in bin and x64 folder.
Include the folder containing the Microsoft.Z3.dll in Project Properties->Reference Paths. The reason is that Microsoft.Z3.dll uses unmanaged z3.dll, which you cannot directly reference in Visual Studio.
In the comments to the previous answers to this question, reference to the x86 distribution and to the x64 distribution were made, and I am not sure this issue is resolved. To clarify:
When compiling a 64-bit binary (called x64 in visual studio), then the 64-bit versions of z3.dll and Microsoft.Z3.dll are required. Those are found in the folder called x64 in the Z3 distribution. Note that this does not depend on the actual machine that Visual Studio is running on.
When compiling a 32-bit binary, then the dlls from the bin directory are required. Again, this does not depend on the actual machine that Visual Studio is running on.
Visual Studio can cross-compile from 32 to 64 bit and vice versa, i.e., it is possible to compile a binary for the 32-bit architecture (called x86 as opposed to x64) on 64-bit machines. It is also possible to compile 64-bit binaries on a 32-bit machine. Depending on what kind of binary is being compiled, the right set of dlls must be added. The setting that matters is in the build configuration of your project in Visual Studio (on top, usually next to the where debug/release mode is selected). At this compilation stage, it does not matter what type of machine the compilation is being performed on. The actual machine only matters when an attempt is made to run a 64-bit binary on a 32-bit machine (but then the error message will be different from the one reported). Running 32-bit binaries on 64-bit machines usually works fine (but the maximum memory usage of the program will be limited).
I hope this helped to remove some of the confusion!
Also, we agree that the combined distribution including both versions creates some unnecessary confusion, so in the future we will consider distributing separate installers for the 32-bit and the 64-bit binaries.
Related
There is an application that uses SQLite. Link to System.Data.SQLite and SQLite.Interop.dll (for x64 and x86 platforms) added statically, version 1.0.112.0. (all 3 files) (SQLite was added to the test project via NuGet, and from there copied to the current project). The System.Data.SQLite and SQLite.Interop.dll files (in the x86 and x64 folders) are present on the client machine. .Net version is 4.7.2.
Most clients work fine, but a few throw an exception with the text "Unable to load DLL 'SQLite.Interop.dll'". I build test versions for x86 and x64 on my machine, in each case SQLite.Interop.dll was loaded from the corresponding folder (If SQLite.Interop.dll does not exist on the corresponding path, then there was an exception).
Where to look to avoid this exception on all client machines?
There is a hunch that the client is missing Microsoft Visual C ++ Redistributable. But later I find out that Redistributable was installed.
The next assumption is that the system can find SQLite.Interop.dll, but an error occurs during loading or initialization, which is interpreted by the wrapper(System.Data.SQLite) as DllNotFoundException.
Maybe the path pointing to the dll is too long?
We had a similar problem when the path that pointed to the dll was too long (More than 255 chars).
After a long search, the cause of the DllNotFoundException was found. This is because SQLite.Interop.dll has a dependency on msvcr120. (Dependency Walker was used to figure this out). But there is one small thing, if the application is for the x64 platform, then this file is expected to be found in the C:\Windows\System32 folder. But if the platform is x86, then the file should be on the path C:\Windows\SysWOW64. I saw that msvcr120 is in the System32 folder and decided that problem is not related to msvcr120.
The simplest solution is to build the application for the x86 platform, and place the msvcr120 next to the exe-file.
I found a better solution to the problem. The corresponding version of msvcr120 is located next to SQLite.Interop.dll in the x86 or x64 folder. Before using sqlite (for example, in the Application constructor or in its overloaded OnStartup() method) we need to add our folder to the PATH environment variable.
var pathVar = Environment.GetEnvironmentVariable("PATH");
string customDllFolder;
if (Environment.Is64BitProcess)
{
customDllFolder = Path.Combine(Environment.CurrentDirectory, "x64");
}
else
{
customDllFolder = Path.Combine(Environment.CurrentDirectory, "x86");
}
pathVar = string.Concat(pathVar, ";", customDllFolder);
Environment.SetEnvironmentVariable("PATH", pathVar, EnvironmentVariableTarget.Process);
This solution is better because we will only use a local copy of msvcr120 if it is not on the user's machine. We can also build an application for both platforms (x86 and x64). This approach can be used for other unmanaged libraries as well.
I am moving three Windows Services (.NET 3.5) from Windows Server 2003R2, to Windows Server 2012 R2 (.NET 4.5).
The first two went well. Reading registry settings from
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\MyCompany\MyApplication].
Now here´s the funny stuff - the third one only works when I store settings in
[HKEY_LOCAL_MACHINE\SOFTWARE\MyCompany\MyApplication] (whitout Wow6432Node)?
And, if I try to run the service with settings in 32-bit registry it reads the settings ok but I get this assembly binding error instead:
System.BadImageFormatException: Could not load file or assembly 'Oracle.DataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. An attempt was made to load a program with an incorrect format. The other two, using the same dll, works fine.
Any ideas? What is different in the third Windows Service?
Since all applications using the same code to read the registry I don´t think that´s the problem. Her´s the code (simplyfied) anyway.
private string getRegistrySetting(string keyName)
{
string softwareSubkeyName = "SOFTWARE";
using (RegistryKey softwareSubkey = Registry.LocalMachine.OpenSubKey(softwareSubkeyName, false))
{
string lmSubkeyName = "MyCompany\\MyApplication;
using (RegistryKey lmSubkey = softwareSubkey.OpenSubKey(lmSubkeyName))
{
return lmSubkey.GetValue(keyName).ToString();
}
}
}
First, you need to make sure that all your executables have the target platform set to x86 (and not to AnyCPU) on the build tab of the project's property pages (caveat: this is a per-build-configuration setting, you need to set the target platform for both Debug and Release build).
Then you need to make sure that you also deploy the 32-bit version of any third-party components such as Oracle.DataAccess. The reason is that a 32-bit process cannot load a 64-bit dll and vice versa.
The target platform is relevant because it determines if your process will be started as a 32-bit or 64-bit process. If your executable runs as a 64-bit process Registry and file system redirection won't be in place - as a result your process will read and write directly to HKEY_LOCAL_MACHINE\SOFTWARE\ and not to the Wow6432Node subnode.
I am trying to install Antlr4 on a new machine but I am getting the following build error:
C:\antlrtest\antlrtest\Reference\Antlr4\Antlr4.targets(129,5): error AC1000: Unknown build error: Object reference not set to an instance of an object.
This is the offending code:
<Antlr4ClassGenerationTask
ToolPath="$(Antlr4ToolLocation)"
BuildTaskPath="$(Antlr4BuildTaskLocation)"
OutputPath="$(IntermediateOutputPath)"
TargetLanguage="%(Antlr4.TargetLanguage)"
TargetFrameworkVersion="$(TargetFrameworkVersion)"
TargetNamespace="%(Antlr4.CustomToolNamespace)"
SourceCodeFiles="#(Antlr4)"
ContinueOnError="$(_IntellisenseOnlyCompile)"
TokensFiles="#(Antlr4Tokens)"
AbstractGrammarFiles="#(Antlr4AbstractGrammar)"
LanguageSourceExtensions="$(DefaultLanguageSourceExtension)"
GenerateListener="%(Antlr4.Listener)"
GenerateVisitor="%(Antlr4.Visitor)"
ForceAtn="%(Antlr4.ForceAtn)"
AbstractGrammar="%(Antlr4.Abstract)">
<Output ItemName="Antlr4GeneratedCodeFiles" TaskParameter="GeneratedCodeFiles" />
</Antlr4ClassGenerationTask>
I think I followed the correct procedure:
I installed the extension from the VS 2012 website for Antlr.
Then I edited the project file to point to the References.
Then I added a reference to the Runtime DLL.
Any help would be appreciated.
So I ran into this today and was pulling my hair out over it for quite some time. The solution for me was to install both the 32-bit and 64-bit versions of the Java SDK.
Initially I only had the 64-bit version installed. It immediately started working after I installed the 32-bit as well.
Hope that helps someone.
This error is caused by Antlr4 failing to find an appropriate version of Java. On a Windows machine, Antlr4 checks the registry first before it checks your environment variables to determine the suitable location of Java.
Shortly before I experienced the same problem, I had been consolidating the many instances of the Java Runtime Environment I had on my computer. I had many and I trimmed them down to only 1 instance of a 64b JRE and 32b JRE each. I removed the rest by just deleting their folders. Subsequently I checked that my user and system environment variables (specifically JAVA_HOME) still pointed to a valid Java directory.
But I failed to realise that there are registry entries that have to be updated too. Possibly a reinstall of Java would fix the registry entries, but I reverted to just fixing them manually.
So the appropriate place in the Antlr4 code is at https://github.com/tunnelvisionlabs/antlr4cs/blob/master/runtime/CSharp/Antlr4BuildTasks/Antlr4ClassGenerationTaskInternal.cs#L144 .
private string JavaHome
{
get
{
#if !NETSTANDARD
string javaHome;
if (TryGetJavaHome(RegistryView.Default, JavaVendor, JavaInstallation, out javaHome))
return javaHome;
if (TryGetJavaHome(RegistryView.Registry64, JavaVendor, JavaInstallation, out javaHome))
return javaHome;
if (TryGetJavaHome(RegistryView.Registry32, JavaVendor, JavaInstallation, out javaHome))
return javaHome;
#endif
if (Directory.Exists(Environment.GetEnvironmentVariable("JAVA_HOME")))
return Environment.GetEnvironmentVariable("JAVA_HOME");
throw new NotSupportedException("Could not locate a Java installation.");
}
}
#if !NETSTANDARD
private static bool TryGetJavaHome(RegistryView registryView, string vendor, string installation, out string javaHome)
{
javaHome = null;
string javaKeyName = "SOFTWARE\\" + vendor + "\\" + installation;
using (var baseKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, registryView))
{
using (RegistryKey javaKey = baseKey.OpenSubKey(javaKeyName))
{
if (javaKey == null)
return false;
object currentVersion = javaKey.GetValue("CurrentVersion");
if (currentVersion == null)
return false;
using (var homeKey = javaKey.OpenSubKey(currentVersion.ToString()))
{
if (homeKey == null || homeKey.GetValue("JavaHome") == null)
return false;
javaHome = homeKey.GetValue("JavaHome").ToString();
return !string.IsNullOrEmpty(javaHome);
}
}
}
}
#endif
Your .\packages\Antlr4.CodeGenerator.4.6.3\build\Antlr4.CodeGenerator.targets file (adjust for correct version number) has lines to set the JavaVendor and JavaInstallation variables:
<Antlr4JavaVendor Condition="'$(Antlr4JavaVendor)'==''">JavaSoft</Antlr4JavaVendor>
<Antlr4JavaInstallation Condition="'$(Antlr4JavaInstallation)'==''">Java Runtime Environment</Antlr4JavaInstallation>
So, in my case at least, the appropriate registry settings were located in HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment
To fix the incorrect registry:
Ensure that CurrentVersion's value (in my case 1.8.0_91) has a corresponding key
Ensure that the JavaHome key in HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8.0_91 (replace with your version) has a directory path to a valid Java installation.
If you're running a 64b Windows, ensure this for both the 64b and 32b versions of the registry (see https://support.microsoft.com/fr-dz/help/305097/how-to-view-the-system-registry-by-using-64-bit-versions-of-windows for how to view the 32b registry on a 64b machine).
Keep in mind, that Visual Studio is a 32b process and that, by default, it will run Antlr4 by looking for a 32b version of the JRE. If, for some reason, you're building the solution outside of Visual Studio with 64b processes, the 64b version of the registry is used.
I am using Visual Studio 2022 and I had to compile a project that used Antlr4.4.5.3. The grammar file was configured to generate a Visitor but it did not work. I had the same error as you.
In my case I had an Open JDK in my JAVA_HOME environment variable. I also had an Oracle Java JDK installed. So, I deduced that Antl4 did not like my JAVA_HOME pointing to the Open JDK.
So I deleted the JDK and JRE folders (that pointed to the Open JDK) at HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft in the registry allowing me to compile my project successfully.
I deduce that Antlr then used the HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment folder where the configuration is set when you install an Oracle Java JDK version.
How can I make my compilation optimized for Windows 64 bit?
You might also want to do a check at runtime, just to be sure:
using System;
using System.Runtime.InteropServices;
class SystemChecker
{
static bool Is64Bit
{
get { return Marshal.SizeOf(typeof(IntPtr)) == 8; }
}
}
A managed project is automatically built according to the architecture selected => default C# project created on AMD64 will be AMD64, X86 on X86. The native one is always 32-bit by default.
To explicitly set a platform:
1 open the solution explorer, select solution, right click->Configuration Manager.
2 go to 'Active Solution Platform', click New.
3 in the 'New Solution Platform' dialog that comes up select the new platform say Itanium. Set 'Copy Settings From' to 'Any CPU' which was the default setting in the 'Active Solution Platform'.
4 click OK.
This is from WebLog
As Patrick Desjardins said, with a little addition.
Beware if you have third party DLL which uses Interop and is compiled with 32 bit. In that case, you will specifically have to set all your assemblies which uses it to use x86 or all manner of weird things will happen.
You can compile for 64bit through the /platform-flag. Note that visual studio Express has no straightforward 64bit compile setting.
See here for more information, and here. Taken from the second source is the following information:
On a 64-bit Windows operating system:
Assemblies compiled with /platform:x86 will execute on the 32 bit CLR running under WOW64.
Executables compiled with the /platform:anycpu will execute on the 64 bit CLR.
DLLs compiled with the /platform:anycpu will execute on the same CLR as the process into which it is being loaded.
Runtime Check:
You can check the execution bit environment at runtime through one of the following options
bool is64BitProcess = IntPtr.Size == 8;
int bitProcess = IntPtr.Size*8;
//C# 4 provides System.Environment.Is64BitProcess
//TimothyP's solution:
bool is64BitProcess = Marshal.SizeOf(typeof(IntPtr)) == 8;
I'm using:
FileInfo(
System.Environment.GetFolderPath(
System.Environment.SpecialFolder.ProgramFiles)
+ #"\MyInstalledApp"
In order to determine if a program is detected on a users machine (it's not ideal, but the program I'm looking for is a right old kludge of a MS-DOS application, and I couldn't think of another method).
On Windows XP and 32-bit versions of Windows Vista this works fine. However, on x64 Windows Vista the code returns the x64 Program Files folder, whereas the application is installed in Program Files x86. Is there a way to programatically return the path to Program Files x86 without hard wiring "C:\Program Files (x86)"?
The function below will return the x86 Program Files directory in all of these three Windows configurations:
32 bit Windows
32 bit program running on 64 bit Windows
64 bit program running on 64 bit windows
static string ProgramFilesx86()
{
if( 8 == IntPtr.Size
|| (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))
{
return Environment.GetEnvironmentVariable("ProgramFiles(x86)");
}
return Environment.GetEnvironmentVariable("ProgramFiles");
}
If you're using .NET 4, there is a special folder enumeration ProgramFilesX86:
Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86)
Environment.GetEnvironmentVariable("PROGRAMFILES(X86)") ?? Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles)
Note, however, that the ProgramFiles(x86) environment variable is only available if your application is running 64-bit.
If your application is running 32-bit, you can just use the ProgramFiles environment variable whose value will actually be "Program Files (x86)".
One way would be to look for the "ProgramFiles(x86)" environment variable:
String x86folder = Environment.GetEnvironmentVariable("ProgramFiles(x86)");
I am writing an application which can run on both x86 and x64 platform for Windows 7 and querying the below variable just pulls the right program files folder path on any platform.
Environment.GetEnvironmentVariable("PROGRAMFILES")
One-liner using the new method in .NET. Will always return x86 Program Files folder.
Environment.Is64BitOperatingSystem ? Environment.GetEnvironmentVariable("ProgramFiles(x86)") : Environment.GetEnvironmentVariable("ProgramFiles"))
C# Code:
Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86)
Output:
C:\Program Files (x86)
Note:
We need to tell the compiler to not prefer a particular build platform.
Go to Visual Studio > Project Properties > Build > Uncheck "Prefer 32 bit"
Reason:
By default for most .NET Projects is "Any CPU 32-bit preferred"
When you uncheck 32 bit assembly will:
JIT to 32-bit code on 32 bit process
JIT to 32-bit code on 64 bit process