Unable to locate program input point inflatevalidate in DLL.

[Zhaoyazhou1996]

Hi, I am trying to test the 32-bit binary of libvips, But when I run a simple test program, I encounter a problem as shown in the figure： The code I tested is as follows：

#include <stdio.h>
#include <vips/vips.h>
#include <Windows.h> 

int main(void)
{
    char* filePath = "D:\\test\\30203b.tif";
    VipsImage* image;

    if (VIPS_INIT(filePath))
        vips_error_exit(NULL);

    if (!(image = vips_image_new_from_file(filePath, NULL)))
        vips_error_exit(NULL);
    g_object_unref(image);
    getchar();
    return(0);
}

Is this a known issue? Am I doing something wrong? Best regards!

[kleisauke]

The inflateValidate symbol originates from zlib (libz.dll), so perhaps there's a conflicting DLL file in your PATH environment variable? There are a few things you could try:

• Try to reorder your PATH environment variable so that the vips bin directory (for e.g. C:\vips-dev-8.10\bin) is included first.
• Try to test with vips.exe outside the bin directory, for example:

  vips copy x.jpg x.png

  If it'll throw any error, the wrong DLLs are being loaded.

• Use the Dependencies program to check if all dependencies can be found and if they are picked up from the correct location.
• Use the statically-linked "web" variant (vips-dev-w32-web-8.10.6-static.zip) to avoid potential collisions.

[Zhaoyazhou1996]

Thank you for your excellent comment! I reorder my PATH environment and search libz.dll in C: and D disk, and deleted the redundant libz.dll. My program can run normally now. Thank you again!