最近npm安装失败了,控制台中有以下消息。不知道是什么问题。
误差
2018-05-28T14:47:28.3230547Z ; HOME = C:\Users\buildguest2018-05-28T14:47:28.3230759Z ; "npm config ls -l" to show all defaults.
2018-05-28T14:47:28.3230939Z
2018-05-28T14:47:28.3372485Z [command]C:\Program Files\nodejs\npm.cmd install --PackagePath=D:\a\1\
XSane图像扫描仪和简单扫描无法找到打印机/扫描仪/复印机,我已经使用了4年。这台打印机运转良好。它通过wifi连接到我的家庭网络。我在运行Ubuntu 16.04。
以下是sudo sane-find-scanner的结果:
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connect
我有佳能的DR-1210C USB扫描仪。
当插入时,内核会识别它:
[5365651.911506] usb 2-2.1: USB disconnect, address 3
[5365661.952066] usb 2-2: USB disconnect, address 2
[5365683.268060] usb 2-2: new full speed USB device using uhci_hcd and address 4
[5365683.441019] usb 2-2: New USB device found, idVendor=1083, idProduct=160f
关于man工具有两个sync页面:
(1) http://man7.org/linux/man-pages/man1/sync.1.html
NAME
sync - Synchronize cached writes to persistent storage
SYNOPSIS top
sync [OPTION] [FILE]...
DESCRIPTION top
Synchronize cached writes to persistent storage
If one or
我正在研究一幅二值图像以获得它的边缘。我使用了opencv中的cannyedge函数,但是结果不太理想。
int edgeThresh = 1;
int lowThreshold = 100;
int const max_lowThreshold = 100;
int ratio = 3;
int kernel_size = 3;
blur(binaryImage, detected_edges, Size(3, 3));
Canny(binaryImage, detected_edges, lowThreshold, lowThre
三星Xpress M2027 WiFi打印机。三星官方安装和打印驱动程序。打印机通过WiFi和Google连接。扫描不起作用,Ubuntu看不到扫描仪:
sudo sane- find -扫描仪找不到打印机:
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your
我有一台不断下降并重新加载FTDI FT4232H的机器。我试过更换电缆,现在还在发生。
我尝试在内核引导参数中设置usbcore.autosuspend=-1,认为这可能是一个自动挂起的问题,但仍然会发生。
完整日志:http://termbin.com/0na9
一些日志:
Aug 22 17:02:44 evo4k-098acd kernel: ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
Aug 22 17:02:44 evo4k-098acd kernel: ftdi_
我想检查在我的列表(suspect)中是否存在一个值。
所以我试着这样做:
suspect = ['A','B','C']
Name = input('Please enter your name')
for Name in suspect:
if Name == suspect:
print('Suspect is detected for 1st level')
else:
print('Suspect is not detected for 1st
我找到了用于识别图像边缘的opencv代码示例,并尝试将其转换为javacv,但我找不到Mat.copyto()方法的方法。有没有人能解释一下平等的方法?这是示例代码。
Mat src, src_gray;
Mat dst, detected_edges;
int edgeThresh = 1;
int lowThreshold;
int const max_lowThreshold = 100;
int ratio = 3;
int kernel_size = 3;
char* window_name = "Edge Map"
我创建了一个新的OpenGL ES应用程序,无需修改任何内容,即可运行该程序。它运行了,但我看到了以下错误消息:
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
open$UNIX2003 called from function _ZN4llvm12MemoryBuffer7getFileEPKcPSsx in image libLLVMContainer.dylib.
Detected an attempt to call a symbol in syst
我试图从kernal32.dll windows函数中使用VirtualQueryEx。
调用此函数之前得到的所有指针/地址都是正确的。
对VirtualQueryEx的调用返回0,这意味着没有成功。
另外,GetLastError()返回错误代码5,这意味着访问被拒绝):
请问我做错什么了?
Windows 8,管理员特权。
JNA制图:
public class Test
{
static Kernel32 kernel32 = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);
我已经将文本存储在字符数组atextLength中,并将模式存储在数组bpatternLength中
cl_char *a = (cl_char *) malloc(textLength*sizeof(cl_char));
for(int i =0; i<textLength;i++)
{
a[i]=text[i];
}
// A buffer object is a handle to a region of memory
cl_mem a_buffer = clCreateBuffer(context,
我正在努力完成操作系统课程的作业,。
我在作业中有个问题:
userptr_t的目的是什么?
当我搜索userptr_t,的源代码时,我发现了以下内容:
/*
* Define userptr_t as a pointer to a one-byte struct, so it won't mix
* with other pointers.
*/
struct __userptr { char _dummy; };
typedef struct __userptr *userptr_t;
typedef const struct __userptr *const_us
我想在OS X上使用OpenCL尽可能自动地编译和链接我的代码项目,我知道如何在C++上做到这一点,但我在OpenCL上遇到了问题。这是我用作的代码
main.cpp:
#include <stdio.h>
#include <stdlib.h>
#ifdef __APPLE__ //Mac OSX has a different name for the header file
#include <OpenCL/opencl.h>
#else
#include <CL/cl.h>
#endif
#define MEM_SIZE (128)/