With original version 2.2.1 normal, now want to use against 2.4.1, copy the 241 file into the bin directory, in the above

CodePudding user response:

The problem, is very simple, you don't have a reference

CodePudding user response:

Should be a file version, web. See if there are any in the config file version of the logo

CodePudding user response:

reference 1st floor Squall001 response:

this problem, is very simple, you don't have a reference

I will corresponding files to delete the old version first, I did not see file, add the new, new file is added, may not be a lack of documents

CodePudding user response:

refer to the second floor lovebaby response:

should be file versions, see if there are any in the web.config about the identity of the file version

I see the old version there is no corresponding items in the congig file, can be normal use, added to the bin directory of the DLL must be added in the config file version of the logo

CodePudding user response:

I am wrong, are you NPOI, excel library?
If so, the new version need reference to,
See http://www.cqutlab.cn/thread-473-1-1.html