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mmdetection训练数据遇到的问题

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1 Permission denied 报错：

-bash: ./compile.sh: Permission denied
没有操作权限，改为赋予最高权限（777）：
chmod 777 compile.sh

2 cuda 问题 报错：
unable to execute '/usr/local/cuda-9.0/bin/nvcc': No such file or directory
error: command '/usr/local/cuda-9.0/bin/nvcc' failed with exit status 1
找不到cuda下nvcc文件，需要找到自己的nvcc文件所在地，然后输入：
./compile.sh \ --export CUDA_HOME=/usr/local/cuda-8.0/bin

如果还不行，需要查看一下是否有nvcc：
nvcc --version

2.1 nvcc正常
若nvcc正常，设置cuda路径首先执行：
sudo vim ~/.bashrc

设置为：
export PATH=/usr/local/cuda-9.0/bin:$PATH export LD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH

然后执行：
sudo vim /etc/profile

末尾添加：
export CUDA_HOME=/usr/local/cuda-9.0 export PATH=/MATLAB/R2016b/bin:/usr/local/cuda-9.0/bin:/anaconda3/bin:$PATH export LD_LIBRARY_PATH=/usr/local/cuda-9.0/lib64:$LD_LIBRARY_PATH

然后执行
source /etc/profile

使链接生效
2.2 command not found
报错：
-bash: nvcc: command not found
应该安装nvcc：
sudo apt-get install nvidia-cuda-toolkit

报错：
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
升级apt-get update：
sudo apt-get update

报错：
Failed to connect to nvidia.github.io port 443: Connection timed out
2.2.1 修改源 则应该修改源：
（1）修改前先做备份：
sudo cp /etc/apt/sources.list /etc/apt/sources.list.old

（2）打开sources.list文件：
sudo vim /etc/apt/sources.list

替换为其他源：
清华源：
# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security multiverse

阿里源：
# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial universe deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb http://mirrors.aliyun.com/ubuntu/ xenial multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-properties deb http://archive.canonical.com/ubuntu xenial partner deb-src http://archive.canonical.com/ubuntu xenial partner deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe deb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse

2.2.2 修改 nameserver 修改/etc/resolv.conf文件为：
nameserver 8.8.8.8 nameserver 4.2.2.2

3 not in the sudoers file 报错：
××× is not in the sudoers file. This incident will be reported.
1.切换到超级用户root：
su root

2.查看/etc/sudoers权限：
ls -all /etc/sudoers

可以看到当前权限为744：
-r--r----- 1 root root 744 4月 16 20:36 /etc/sudoers
3.更改权限为777（表示允许操作）：
chmod 777 /etc/sudoers

4.编辑/etc/sudoers：
vi /etc/sudoers

5.在root ALL=(ALL:ALL) ALL 下面添加一行：
XXXALL=(ALL)ALL

其中XXX表示当前用户名
6.把/etc/sudoers权限改回440：
chmod 440 /etc/sudoers

然后就可以切换回自己的用户操作了
4 ASSERT 报错：
ASSERT: "false" in file qasciikey.cpp, line 501
OpenCV版本不对，没有里面没有tracker。安装contrib的OpenCV：
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple opencv-contrib-python

如果提示使用--user：
pip install --user -i https://pypi.tuna.tsinghua.edu.cn/simple opencv-contrib-python

5 no commands supplied 报错：
no commands supplied
应该将 python setup.py 改为 python setup.py install 。
6 FileNotFoundError 报错：
[Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', /home/snowstorm/mmdetection']
磁盘空间已满，清理空间。


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【mmdetection训练数据遇到的问题】mmdetection训练数据遇到的问题
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