installing from webmatrix2 app gallery

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I am trying to install concrete5 in webmatrix2. I am selecting
v5.4 as the PHP version. Webmatrix2 installs 5.4.
When I try to run the site I get many variations of the error
listed below. I have searched all over and can't find anything.
Can you help?

PHP Strict Standards: Non-static method Loader::helper() should not be called statically, assuming $this from incompatible context in C:\... my install directory.