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


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.



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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