Knowledgebase
Failed to detect version of solution/project file
Posted by Yoni Davidson on 18 May 2014 02:33 PM

Symptoms:

The following error is shown when trying to perform a build:

Failed to detect version of solution/project file: C:\xxx\xxxx\xxxxx.sln
Failed to load solution file: C:\xxx\xxxx\xxxxx.sln (line 0)
Unknown file format signature.

 

Solution:

Usually solved with internal version1498 and on (V5.5 already contains this fix) or by adjusting the .sln file so the "visual studio" line will contain full version - 2010, 2012 etc…and not just 10, 11,12, etc…
In some case, usually after upgrading from older Visual Studio versions, the .sln file might contain the following line which is not valid:

# Visual Studio 2011

Adjusting it to the one of the following options will solve this problem:
# Visual Studio 2010
# Visual Studio 2012
# Visual Studio 2013

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