error on cmake parameter

VincentCheungM commented 7 years ago

From the step 2 in wiki, the path of install prefix doesn't exist, is "pwd" should be "$(pwd)"? I have not tried yet, @Durant35

cmake -DCMAKE_INSTALL_PREFIX=`pwd`/../ ..

Durant35 commented 7 years ago

I should be like following:

`pwd`

Durant35 commented 7 years ago

Finding: It will be trouble in some strange path

like: with space in path

Durant35 commented 7 years ago

Following is a better way

cmake -DCMAKE_INSTALL_PREFIX="$(pwd)/../" ..

Kun-Lee commented 7 years ago

why a problem "directory does not appear to contain CMakeLists.txt."?

Durant35 commented 7 years ago

cmake depends on a CMakeLists.txt, and cmake will find the current directory for this CMakeLists.txt. So, when you run cmake, check if current directory has one or not(error occurs). Besides, we use cmake .. in our project because we want to build out-of-source(in an independent build directory), and the CMakeLists.txt located at this build parent directory, so we use ..

Kun-Lee commented 7 years ago

why a problem "make: *** No targets specified and no makefile found. Stop."? and should I Configure the experimental environment in the file "Velodyne_viewer"?

Durant35 commented 7 years ago

cmake finally generate a Makefile if no error occurs(in the directory you run cmake), while Makefile is use by make. make is very similar to cmake, instead finding Makefile.... All this is mentioned in this Wiki, hope you develop a habit: read what clearly first, understand why second(Google will help), then how to do becomes easy.

Kun-Lee commented 7 years ago

No, I follow your steps without a "Makefile" file...

Kun-Lee commented 7 years ago

Only a "CMakefiles"

Durant35 commented 7 years ago

You make sure that there is no any error occurred in your cmake command??? maybe lost some dependencies

Kun-Lee commented 7 years ago

really; I can't find the problem....I only have Cmakefiles;;

Kun-Lee commented 7 years ago

I cmake the file "CmakeList.txt" and get CMakeFiles and a CMakeCache.txt ,en

Durant35 commented 7 years ago

You can put some screenshot(directly ctrl+V to upload here...), I want to see your cmake print info, your currrent directory ls info

Kun-Lee commented 7 years ago

I send a mail of qq I'm sorry.

Durant35 commented 7 years ago

@Kun-Lee Please do read the Wiki carefully first.... follow the wiki, do not meet any problem with great probability.....Thanks!

Kun-Lee commented 7 years ago

a problem "Cmake error at Cmakelists.txt:36" is "add_subdirectory(src bin)" why do with?plz.

Durant35 commented 7 years ago

请截图吧最好包括运行的命令所在目录情况运行结果谢谢

Durant35 commented 7 years ago

@Kun-Lee Why you said: a problem "Cmake error at Cmakelists.txt:36"????

Kun-Lee commented 7 years ago

It was before I built the file "build" outside.Now I put "build" in "Velodyne_viewer".it has new error.

Durant35 commented 7 years ago

I think you can easily read the above CMake Error and install corresponding dependency(glut) as Wiki said to fix your problem.... Don't do something wrong that make you in trouble before understanding the command cmake & make