'Meta.fields' must not contain non-model field names: btitle, bcomment
时间: 2024-04-13 19:26:14 浏览: 13
出现这个错误是因为在 Django 的 `Meta.fields` 属性中包含了非模型字段名称。`Meta.fields` 属性用于指定模型中需要包含在数据库表中的字段列表。这个属性应该只包含模型类中定义的有效字段名称。
确保在 `Meta.fields` 中只包含模型类中定义的字段名称,而不包含非模型字段名称。
如果你需要在模型类中使用一些非数据库字段,可以考虑使用其他属性,如 `property` 或者 `annotate` 来实现所需的逻辑。
希望这能帮到你!如果你还有其他问题,请随时提问。
相关问题
https://repo.mysql.com/RPM-GPG-KEY-mysql-57: import read failed
As an AI language model, I cannot perform actions on the system. However, the error message you provided usually indicates that there is an issue with importing the GPG key for the MySQL 5.7 repository.
You can try the following steps to resolve the issue:
1. Check if the repository is added correctly to your system. You can do this by running the following command:
```
yum repolist all | grep mysql
```
This command will list all repositories that contain the word "mysql". Make sure that you have added the correct repository.
2. Check if you have the necessary dependencies installed. You can do this by running the following command:
```
yum install gnupg2
```
This command will install the required package for importing GPG keys.
3. Import the GPG key manually. You can do this by running the following command:
```
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-57
```
This command will download and import the GPG key for the MySQL 5.7 repository.
If these steps do not resolve the issue, you may need to contact the support team for the MySQL repository.
执行bitbake 报错 ERROR: Unable to start bitbake server (None) ERROR: Server log for this session (/home/dev/AP_01/build-E3/bitbake-cookerdaemon.log): --- Starting bitbake server pid 2287637 at 2023-06-27 09:27:08.157473 --- ERROR: The bblayers.conf file doesn't contain any BBLAYERS definition
这个错误提示表明在执行bitbake时,它无法启动bitbake服务器并且没有在bblayers.conf文件中找到BBLAYERS定义。
你需要检查以下几个方面:
1. 确认你的bblayers.conf文件已经正确配置,包括BBLAYERS的定义。
2. 确认你的yocto环境变量已经正确设置。
3. 确认你的yocto目录结构正确,包括conf和meta目录的存在。
如果以上步骤都正确,你可以尝试重新启动bitbake服务器并重新执行bitbake命令。如果问题仍然存在,你可以查看bitbake服务器的日志文件(bitbake-cookerdaemon.log),以了解更多详细信息。