You tried to copy a file foo from another user's directory, but you got the error message cannot create file foo. you have write permission in your own directory. what could be the reason, and how do you copy the file

Solution:

The terms foo bar, fu bar, or foo, bar, baz and qux (alternatively, quux) are sometimes used as placeholder names (also referred to as metasyntactic variables) in computer programming or computer-related documentation. They have been used to name entities such as variables, functions, and commands whose purpose is

It happens due to:

Insufficient space

If we try to copy a large file to a volume that has less free space than the size of the file, you will be unable to do so. Not a surprise.

File is corrupted

Sometimes, we will be unable to copy a file because the file is corrupted, and the Finder is unable to read the file's contents. In general, your best bet is to delete the file and start over with a fresh download, backup copy, or new document. If you absolutely need to try to recover the information in the file, you can try opening it in its creating application (such as Word for a Word document), copying what you can to a new document and saving the new document. In other cases, an text editor such as BBEdit will allow you to at least view the text within a document, allowing you to save it even if nothing else can be saved. Otherwise, attempting disk repairs (such as with Disk Utility) may recover the item. Barring that, give up on the file and delete it.

File does not appear after being moved

Occasionally, We are copying a file, especially to the Desktop, the file may not appear on the Desktop when the copy is complete. This situation most often happens when you're decompressing a file from an archive or downloading a file from the Internet, or when the file is being moved or created from an application other than the Finder itself.

In almost all cases, the file is really there; the Finder has not been updated to reveal it. You need to give the Finder a bit of a push. For files that do not appear after being downloaded from Explorer, open Explorer's Download Manager; double-click the name of the missing file; and in the window that appears, click the Reveal in Finder button. The item should become visible. As a last resort, choose Force Quit and reload the Finder. This procedure should get the file to appear.

the formula for work is

f*d

therefore work=2.0n*3.0=6n*m

the answer is e ; )(: