delphi10.4 编译报错is marked read only
时间: 2023-06-01 07:03:07 浏览: 104
这个错误通常意味着您正在尝试更改只读文件或目录。可能是您的项目文件或某些子目录被设置为只读。
解决方法:
1. 确保您的项目文件和相关的子目录不是只读的。您可以右键单击它们,然后取消选中“只读”属性。
2. 如果您的项目文件和相关的子目录不是只读的,则可能是您没有适当的访问权限。尝试以管理员身份运行Delphi IDE。
3. 如果上述解决方法都不起作用,请尝试使用文件资源管理器打开项目文件所在的文件夹,并检查文件夹的属性。可能需要将其设置为可写。
4. 如果仍然无法解决问题,请考虑将项目复制到其他位置并重新打开它。这有时可以解决文件损坏或其他问题。
相关问题
ndarray is read-only
The error message "ndarray is read-only" typically occurs when you are trying to modify a numpy array that is read-only. This means that the array has been marked as read-only, either explicitly or implicitly, and cannot be modified.
To fix this error, you need to make sure that you are working with a numpy array that is not read-only. Here are a few things you can try:
1. Check if the array is read-only: You can check if an array is read-only by calling the `flags` attribute of the array and checking the value of the `writeable` property. If `writeable` is `False`, then the array is read-only.
2. Make a copy of the array: If the array is read-only, you can make a copy of the array using the `numpy.copy()` function. The copy will not be read-only, so you can modify it as needed.
3. Use a different array: If you cannot modify the read-only array, you may need to create a new array that is not read-only and use that instead.
Overall, it's important to be careful when working with numpy arrays to avoid accidentally marking them as read-only.
Transaction silently rolled back because it has been marked as rollback-only 报错
"Transaction silently rolled back because it has been marked as rollback-only" 是一个常见的事务回滚错误。这个错误通常发生在使用事务管理器时,当事务被标记为只能回滚时,它会被自动回滚。
这个错误的原因可能有多种,以下是一些可能的原因和解决方法:
1. 代码中显式地将事务标记为只能回滚:在代码中,可能会有一段逻辑将事务标记为只能回滚,这样一旦事务执行过程中出现异常,就会自动回滚。解决方法是检查代码中是否有这样的逻辑,并根据需要进行修改。
2. 异常处理不当:如果在事务执行过程中发生了异常,但没有正确处理异常并将事务标记为只能回滚,那么事务就会被自动回滚。解决方法是在代码中正确处理异常,并将事务标记为只能回滚。
3. 数据库约束冲突:在事务执行过程中,可能会发生数据库约束冲突,例如唯一性约束或外键约束等。这些约束冲突会导致事务被标记为只能回滚。解决方法是检查数据库约束是否正确,并确保事务操作不会违反这些约束。
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