likun@ubuntu:~/SDK/Hi3519DV500_SDK_V2.0.0.2$ echo "" > /etc/ld.so.preload bash: /etc/ld.so.preload: Permission denied

这个命令试图将空字符串写入 `/etc/ld.so.preload` 文件中，但是由于权限限制，无法操作该文件。你需要使用 `sudo` 命令获取管理员权限，然后再执行该命令。例如：

sudo sh -c 'echo "" > /etc/ld.so.preload'

在输入密码后，该命令应该就能够执行成功了。

相关问题

ModuleNotFoundError: No module named 'Crypto' ~/SDK/Hi3519DV500_SDK_V2.0.0.2/smp/a55_linux/source/bsp cp /home/likun/SDK/Hi3519DV500_SDK_V2.0.0.2/smp/a55_linux/source/bsp/tools/pc/image_tool/image/oem/boot_image.bin /home/likun/SDK/Hi3519DV500_SDK_V2.0.0.2/smp/a55_linux/source/bsp/pub/hi3519dv500_emmc_image_glibc/boot_image.bin; cp: cannot stat '/home/likun/SDK/Hi3519DV500_SDK_V2.0.0.2/smp/a55_linux/source/bsp/tools/pc/image_tool/image/oem/boot_image.bin': No such file or directory Makefile:499: recipe for target 'gslboot_build' failed make: *** [gslboot_build] Error 1

这个错误提示说明在执行 make 命令时，出现了找不到 Crypto 模块的错误，并且在复制文件时也出现了找不到文件的错误。这个问题可能是由于缺少依赖库或者文件路径错误导致的。建议您检查一下是否正确安装了 Crypto 模块以及相关依赖库，同时检查一下文件路径是否正确。您可以尝试重新安装 Crypto 模块或者更新依赖库，然后再重新执行 make 命令。

Traceback (most recent call last): File "C:\Users\likun\pythonzz\Lib\site-packages\pandas\core\indexes\base.py", line 3652, in get_loc return self._engine.get_loc(casted_key) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "pandas\_libs\index.pyx", line 147, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\index.pyx", line 176, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\hashtable_class_helper.pxi", line 7080, in pandas._libs.hashtable.PyObjectHashTable.get_item File "pandas\_libs\hashtable_class_helper.pxi", line 7088, in pandas._libs.hashtable.PyObjectHashTable.get_item KeyError: 'names' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "D:\pythonzz\2.py", line 4, in <module> names=pd.read_excel('D:\pythonzz\y\\post.xlsx')['names']# 读取所有照片名字 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^ File "C:\Users\likun\pythonzz\Lib\site-packages\pandas\core\frame.py", line 3761, in __getitem__ indexer = self.columns.get_loc(key) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\likun\pythonzz\Lib\site-packages\pandas\core\indexes\base.py", line 3654, in get_loc raise KeyError(key) from err KeyError: 'names' Process finished with exit code 1

这是一个 KeyError 异常，提示 'names' 这个键不存在于读取的 Excel 文件的列中。请检查 Excel 文件的列名是否正确或者是否存在。可能需要使用 `pd.read_excel('D:\pythonzz\y\\post.xlsx', usecols=['names'])` 明确指定使用的列。