Using Arduino IDE 1.6.9 2016年03月25日 02:33 with Windows 7

If there is an IDE bundled library with an architectures value in library.properties that matches the selected board's architecture and another library of the same name in the sketchbook that doesn't match the architecture then the IDE bundled library has include priority but the sketchbook library's examples are shown in File > Examples.

Here's a more complex real life example of this issue causing an error.

• Tools > Board > Zero
• Sketch > Manage Libraries... > USBHost > Update - this will install the SAM version of USBHost to {sketchbook}/libraries.
• File > Examples > USBHost > ADKTerminalTest - {sketchbook}/libraries/USBHost/examples/ADKTerminalTest/ADKTerminalTest.ino is opened but the SAMD core version of the USBHost library will have include priority because of arduino/arduino-builder@b2f7c72.
• Attempting to compile this sketch for Zero fails.