Go to advanced search

by IzunumaPi
Mon Sep 10, 2018 4:21 am
Forum: Beginners
Topic: I cannot compile c++ program.
Replies: 5
Views: 594

Re: I cannot compile c++ program.

How can I add the library link on the command line?
by IzunumaPi
Thu Sep 06, 2018 2:13 am
Forum: Beginners
Topic: I cannot compile c++ program.
Replies: 5
Views: 594

Re: I cannot compile c++ program.

reg++ -Wall -o "rei2-1" "rei2-1.cpp"(derectory: /home/pi/Desktop/C) /tmp/ccWxBQc9.o: function `main': rei2-1.cpp:(.text+0x28): It is an undefined reference to `cvLoadImage' rei2-1.cpp:(.text+0x3c): It is an undefined reference to`cvNamedWindow' rei2-1.cpp:(.text+0x4c): It is an undefined reference t...
by IzunumaPi
Thu Sep 06, 2018 1:00 am
Forum: Beginners
Topic: I cannot compile c++ program.
Replies: 5
Views: 594

I cannot compile c++ program.

I can not compile the following c ++ files. Please tell me the cause. #include "stdio.h" #include "highgui.h" #include "cv.h" int main( int argc, char** argv){ IplImage* img = cvLoadImage( argv[1] ); cvNamedWindow( "scrot.png", CV_WINDOW_AUTOSIZE ); cvShowImage( "scrot.png", img ); cvReleaseImage( &...
by IzunumaPi
Thu Jul 26, 2018 12:28 am
Forum: Beginners
Topic: What's "rfkill"?
Replies: 7
Views: 529

Re: What's "rfkill"?

Thank you very much!
by IzunumaPi
Mon Jul 23, 2018 5:39 am
Forum: Beginners
Topic: What's "rfkill"?
Replies: 7
Views: 529

What's "rfkill"?

I attempted to start hostapd,
"rfkill: WLAN soft bloked" is displayed and hostapd couldn't be started.
How can I resolve this error?
by IzunumaPi
Mon Jul 23, 2018 4:30 am
Forum: Troubleshooting
Topic: I cannot be made an access point.
Replies: 3
Views: 180

I cannot be made an access point.

After entering $ sudo bash -c "zcat /usr/share/doc/hostapd/examples/hostapd.conf.gz > /etc/hostapd/hostapd.conf of this site (https://azriton.github.io/2017/03/22/Raspberry-Pi-3-を-WiFi-アクセス・ポイント化する/), the error "There is no such file or directory" appears on the screen and we don't recommend the nex...
by IzunumaPi
Thu Jul 12, 2018 1:46 am
Forum: Troubleshooting
Topic: I cannot set raspberry pi as an access point.
Replies: 3
Views: 252

Re: I cannot set raspberry pi as an access point.

Thank you very much. However, a new problem has occurred.

sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.orig

Can not stat mv: '/etc/dnsmasq.conf': There is no such thing as such
by IzunumaPi
Mon Jul 09, 2018 5:09 am
Forum: Troubleshooting
Topic: I cannot set raspberry pi as an access point.
Replies: 3
Views: 252

I cannot set raspberry pi as an access point.

I set up to use raspberry pie 3 model B as an access point using hostapd, but the following error was displayed. Please tell me how you understand my sentences. <error message> Configuration file: /etc/hostapd/hostapd.conf Line 1759: no authentication algorithms allowed 1 errors found in configurati...
by IzunumaPi
Thu Jun 28, 2018 1:26 am
Forum: Troubleshooting
Topic: I cannot create makefiles.
Replies: 7
Views: 346

Re: I cannot create makefiles.

Thank you.
A problem occurred again.

I entered "mkvirtualenv cv -p python 3" in step 8.After that, "/ usr / bin / python 3: Error while finding module specification for 'virtualenvwrapper.hook_loader '(ImportError: No module named 'virtualenvwrapper')" is displayed.
by IzunumaPi
Wed Jun 27, 2018 2:17 am
Forum: Troubleshooting
Topic: I cannot create makefiles.
Replies: 7
Views: 346

Re: I cannot create makefiles.

Thank you for teaching me. However, I did not understand how to operate from the middle of this page. I entered "sudo pip install virtualenv virtualenvwrapper" command in "Step 7: install pip and virtualenv". I don't understand the operation method from "Modify your ~ /. .profile file to include the...
by IzunumaPi
Wed Jun 27, 2018 12:51 am
Forum: Troubleshooting
Topic: I cannot create makefiles.
Replies: 7
Views: 346

Re: I cannot create makefiles.

I'm using Raspberry Pi 3 Model B.
by IzunumaPi
Wed Jun 27, 2018 12:38 am
Forum: Troubleshooting
Topic: I cannot create makefiles.
Replies: 7
Views: 346

I cannot create makefiles.

I get an error message like this and I can not create a makefile. Please tell me how to solve it.

<error massage>
CMake Error at cmake/OpenCVVersion.cmake:2 (file):
file STRINGS file "/home/pi/modules/core/include/opencv2/core/version.hpp"
cannot be read.
by IzunumaPi
Thu Jun 21, 2018 1:45 am
Forum: Troubleshooting
Topic: Error messages are displayed and software cannot be installed on RaspberryPi itself.
Replies: 1
Views: 161

Error messages are displayed and software cannot be installed on RaspberryPi itself.

I attempted to install OpenCV and mjpg-streamer on RaspberryPi itself,but both displayed "temporary failure resolving 'raspbian.raspberrypi.org'" and couldn't be installed.
Please tell me because I don't know how to solve it.
by IzunumaPi
Wed Jun 20, 2018 2:56 am
Forum: 日本語
Topic: エラーメッセージが表示され,RaspberryPi本体にソフトをインストールできません.
Replies: 0
Views: 2760

エラーメッセージが表示され,RaspberryPi本体にソフトをインストールできません.

RaspberryPi本体に,OpenCVとmjpg-streamerをインストールしようとしたのですが,どちらも"temporary failure resolving 'raspbian.raspberrypi.org'"というエラーメッセージが表示され,インストールができませんでした.
解決方法がわからないので教えてください.

Go to advanced search