Library stays black

Why does an imported library stay black, not change it's color to orange and become available to the sketch. I have this issue with several of them.

I menu to SKETCH drop dow and select INCLUDE LIBRARY menu over and select MANAGE LIBRARIES find the one I wold like to use and use the install button to get it. Then I shut down the Arduino sketch software and restart it. On a new file, go to the Library menu and import the library. When trying to verify get the following error message.......

Arduino: 1.6.3 (Windows Vista), Board: "Arduino Uno"

Build options changed, rebuilding all

In file included from sketch_jun10a.ino:1:0:

C:\Users\Jesse\Documents\Arduino\libraries\RTClib/RTClib.h:12:24: error: expected ')' before 't'

DateTime (uint32_t t =0);

^

C:\Users\Jesse\Documents\Arduino\libraries\RTClib/RTClib.h:13:24: error: expected ')' before 'year'

DateTime (uint16_t year, uint8_t month, uint8_t day,

^

C:\Users\Jesse\Documents\Arduino\libraries\RTClib/RTClib.h:17:21: error: '__FlashStringHelper' does not name a type

DateTime (const __FlashStringHelper* date, const __FlashStringHelper* time);

^

C:\Users\Jesse\Documents\Arduino\libraries\RTClib/RTClib.h:17:42: error: ISO C++ forbids declaration of 'date' with no type [-fpermissive]

DateTime (const __FlashStringHelper* date, const __FlashStringHelper* time); ^

C:\Users\Jesse\Documents\Arduino\libraries\RTClib/RTClib.h:17:54: error: '__FlashStringHelper' does not name a type

DateTime (const __FlashStringHelper* date, const __FlashStringHelper* time);

^

this goes on for a few pages
here is the code

#include <RTClib.h>

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

It is not consistent and I am finding the sketches like to have consistency, so I thought there must be an issue. But what is with the extended error messages??

OK will do but I retrieved it using the Arduino program. I am pretty sure it is most recent release.

Thanks for your suggestion of backing up and using an older version. After I am sure my small amount of files are saved I will give it a go. I have to say I am very frustrated with the programing language as it is. But my small little project is so close to being complete I am having a hard time letting this go.

I am already finding that the Raspberry PI2 can not only read the sensor but also perform the file saving, and it has the wifi built in. In the place of a programing language like sketch that is small and rather quaint it delivers Python (a C++ interface). This is a much larger language and more usable than a sketch. And I should say more logical. Why should someone spend hours and hours learning an IDE that is not well... portable.
I have already made a program for my work that can be used on my Android phone, using Qpthyon.

1Jesse:
Why should someone spend hours and hours learning an IDE that is not well... portable.

The IDE uses C++, probably the best-known and most portable programming language in use today.