Where is Arduino library store in my harddrive ?

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1

i am confuse the where is the Arduino library suppose to be keep. When I try to compile a program with LiquidCrystal.h, it shows somehow my library is not installed. I try to installed and then recompile, the error display as below:-

Multiple libraries were found for "LiquidCrystal.h"
Used: E:\Arduino-MyProgram\libraries\LiquidCrystal
Not used: E:\Arduino1.8.2\arduino-1.8.2\libraries\LiquidCrystal
Using library LiquidCrystal at version 1.0.7 in folder: E:\Arduino-

MyProgram\libraries\LiquidCrystal
exit status 1
Error compiling for board Arduino Uno.

In my preference, mysketch book location is E:\Arduino-MyProgram.

Where is the directory the library store and where can i find this directory ?

liquidcrystallerror.txt (15.8 KB)

2

There is no library "store".

Not sure what you are asking.

It looks like you have two versions of the IDE installed.

.

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hamisu-anguan:
i am confuse the where is the Arduino library suppose to be keep.

Libraries should be installed under the libraries subfolder of the sketchbook.

hamisu-anguan:
When I try to compile a program with LiquidCrystal.h, it shows somehow my library is not installed.

That's too vague a statement for us to do anything with. The only output you posted clearly shows you have two copies of the library installed.

hamisu-anguan:
the error display as below:

That's just telling you there are two libraries on your computer that contain a file named LiquidCrystal.h. One is the LiquidCrystal library that comes with the Arduino IDE, the other is another library of that name you have in your sketchbook. If you just take a second to read, instead of just jumping to the conclusion that it's an error, that should be quite clear. This is just a helpful informational message provided by the Arduino IDE. As long as it shows that the intended library was used, there is nothing to worry about and you can just ignore it.

For some reason you decided to put the irrelevant part of the output in your post and the real error is buried in the txt file you attached. This output shows you are using a very outdated version of Arduino AVR Boards. Do this:

  • Tools > Board > Boards Manager
  • Wait for downloads to finish
  • Click on "Arduino AVR Boards"
  • Click "Update"
  • Wait for update to finish
  • Click "Close"

After doing that the problem will likely be fixed.

hamisu-anguan:
Where is the directory the library store and where can i find this directory ?

It provides the path right in the message you posted.