'TheoryData<float>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<float>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<double>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<double>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<float>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<float>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<double>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<double>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<float>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<float>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<double>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<double>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<float>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<float>' could be found (are you missing a using directive or an assembly reference?)

'TheoryData<double>' does not contain a definition for 'Select' and no accessible extension method 'Select' accepting a first argument of type 'TheoryData<double>' could be found (are you missing a using directive or an assembly reference?)