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I have visual studio 2013 installed on my machine and i am trying to load a project developed on visual studio 2010.The project is built successfully. However, whenever i try to view the master page file in design view it shows the error master page file cannot be loaded....

I googled but no outcome.

Please Help!!

Thanks in advance.
stibee 23-Feb-15 5:00am
Please show some code
[no name] 23-Feb-15 5:36am
can u show ur code ? chk ur master page path.
[no name] 23-Feb-15 6:05am
There might be some unfinished tags in your master page code or the file path might be different. Please check the tags once and the file path for loading the pasterpage.
Member 11472226 24-Feb-15 1:17am
MasterPageFile="~/UI/WebAPI/Pages/CoreMaster.master" this is the path.....
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Solution 1

Just check your masterpage path.It might be the issue.
Member 11472226 24-Feb-15 1:19am
MasterPageFile="~/UI/WebAPI/Pages/CoreMaster.master" this is the master page path..... and as per the tree view of solution explorer it is correct...
Rajat_RJT 26-Feb-15 1:59am
try 2 solutions-
1. just use master file like- MasterPageFile="CoreMaster.master"
2. open the solution as website(File->Open->Website)

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Solution 2

it is because of loading the lower version 2010 file to higher version 2013 Visual Studio, some of the assemblies are not supported in the 2012 and higher version visual studio.
BloodBaz 10-Oct-17 6:33am
which 'file' are you referring to? The Master file or the Page file? Is there a way to determine if this is the case and is there a process that can applied to 'upgrade' which ever files are old?

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