1 Permission denied

報錯：

-bash: ./compile.sh: Permission denied

沒有操作權限，改為賦予最高權限（777）：

chmod 777 compile.sh

2 cuda 問題

報錯：

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，然后輸入：

./compile.sh \\ --export CUDA_HOME=/usr/local/cuda-8.0/bin

如果還不行，需要查看一下是否有nvcc：

nvcc --version

2.1 nvcc正常

若nvcc正常，設置cuda路徑首先執行：

sudo vim ~/.bashrc

設置為：

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

然后執行：

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

然后執行

source /etc/profile

使鏈接生效

2.2 command not found

報錯：

-bash: nvcc: command not found

應該安裝nvcc：

sudo apt-get install nvidia-cuda-toolkit

報錯：

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

升級apt-get update：

sudo apt-get update

報錯：

Failed to connect to nvidia.github.io port 443: Connection timed out

2.2.1 修改源

則應該修改源：

（1）修改前先做備份：

sudo cp /etc/apt/sources.list /etc/apt/sources.list.old

（2）打開sources.list文件：

sudo vim /etc/apt/sources.list

替換為其他源：

清華源：

# 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文件為：

nameserver 8.8.8.8
nameserver 4.2.2.2
nameserver 4.2.2.2

3 not in the sudoers file

報錯：

××× is not in the sudoers file. This incident will be reported.

1.切換到超級用戶root：

su root

2.查看/etc/sudoers權限：

ls -all /etc/sudoers

可以看到當前權限為744：

-r--r----- 1 root root 744 4月 16 20:36 /etc/sudoers

3.更改權限為777（表示允許操作）：

chmod 777 /etc/sudoers

4.編輯/etc/sudoers：

vi /etc/sudoers

5.在root ALL=(ALL:ALL) ALL 下面添加一行：

XXX    ALL=(ALL)ALL

其中XXX表示當前用戶名

6.把/etc/sudoers權限改回440：

chmod 440 /etc/sudoers

然后就可以切換回自己的用戶操作了

4 ASSERT

報錯：

ASSERT: "false" in file qasciikey.cpp, line 501

OpenCV版本不對，沒有里面沒有tracker。安裝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

報錯：

no commands supplied

應該將 python setup.py 改為 python setup.py install 。

6 FileNotFoundError

報錯：

[Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', /home/snowstorm/mmdetection']

磁盤空間已滿，清理空間。

審核編輯：湯梓紅