when copy file get error The target file is a directory, not a file

ahmed elbarbary

5y2.1k.NET

I work on asp.net core 3.1 web api

I get exception error as below :

Exception The target file is a directory, not a file. on file.copy

this lines generated exception

System.IO.File.Copy(OutputfilePath, Path.Combine(exportDirectory, fileName), true);

two files can access and open it when i open on fil explorer but issue

as above

so How to solve this issue please ?

what i try as below :

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

ahmed elbarbary5y ago
1. System.IO.File.Copy(OutputfilePath, Path.Combine(exportDirectory, fileName), true);
2. System.Diagnostics.Debug.WriteLine(myValue2)
3. \\192.168.2.7\ImportExport\testImporter
4. System.Diagnostics.Debug.WriteLine(exportDirectory)
5. \\192.168.2.7\ImportExport\testImporter\5
6. System.Diagnostics.Debug.WriteLine(OutputfilePath)
7. \\192.168.2.7\ImportExport\testImporter\DeliveryGeneration_Output.xlsx
8. System.Diagnostics.Debug.WriteLine(Path.Combine(exportDirectory, fileName))
9. \\192.168.2.7\ImportExport\testImporter\5\orignal-e1f75892-7c35-4533-b2ff-ddc8e9893733.xlsx
10. System.Diagnostics.Debug.WriteLine(ex)
11. System.IO.IOException: The target file '\\192.168.2.7\ImportExport\testImporter\5\orignal-e1f75892-7c35-4533-b2ff-ddc8e9893733.xlsx' is a directory, not a file.
12. at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite)
13. at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite)

Sachin Singh5y ago

yes, for testing purpose make your destination path static for a moment and test, if it works then there are lots of possible scenario but first do it make you destination as

string dest= 'http:\\192.168.2.7/importexport\testimporter/deliveryGeneration.xlx' ;

ahmed elbarbary5y ago

thank you for reply

Not opposite destination and source it is correct

i confirmed it is correct

may be another reason for this issue

can you give me another solution

Sachin Singh5y ago

the copy method takes the source file then the destination file then true.

you are perhaps doing it opposite. it should be like shown below.

System.IO.File.Copy(sourceFile, destFile, true);

if outputFilepath is your source file then test with a static file path for destination and test.