# Is there a trick to remove/hide the legacy API notices? **URL:** \ **Category:** Programming\ **Created:** [July 27, 2018, 4:53pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850 "2018-07-27T16:53:20Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![hoschi](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/hoschi/32/899_2.png) [@hoschi](https://community.keyboard.io/u/hoschi)\ **Post date:** [July 27, 2018, 4:53pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/1 "2018-07-27T16:53:20Z")
I get A LOT of these messages after updating today: ```auto ------------------------------------------------------------------------ [-Wdeprecated-declarations] Kaleidoscope.useLoopHook(legacyLoopHook); ^ In file included from /home/hoschi/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope-Focus/src/Kaleidoscope/Focus.h:21, from /home/hoschi/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope-Focus/src/Kaleidoscope-Focus.h:21, from /home/hoschi/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope-Focus/src/Kaleidoscope/Focus.cpp:19: /home/hoschi/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope/src/Kaleidoscope.h:184:15: note: declared here static void useLoopHook(loopHook hook) ^ ~~~~~~~~~~ /home/hoschi/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope-Focus/src/Kaleidoscope/Focus.cpp:146:42: warning: 'static void kale idoscope::Kaleidoscope_::useLoopHook(kaleidoscope::Kaleidoscope_::loopHook)' is deprecated: ------------------------------------------------------------------------ The legacy plugin API based on hook registration is deprecated. Consider upgrading your plugins, or implementing the new interface described by `kaleidoscope::Plugin`. In particular, instead of using `Kaleidoscope.useLoopHook`, implement `.beforeEachCycle`, `.beforeReportingState()`, or `.afterEachCycle()` instead. If your plugins are up-to-date, and you are not a developer, it is usually safe to ignore this message. Especally if the full error points to a line containing `legacyLoopHook` or `legacyEventHandler`. ``` Is this something I can influence? Also I get this warning, is this important? ```auto /usr/share/arduino/hardware/arduino/avr/cores/arduino/WString.cpp: In member function 'void String::remove(unsigned int, unsigned int)': /usr/share/arduino/hardware/arduino/avr/cores/arduino/WString.cpp:699:9: warning: 'char* strncpy(char*, const char*, size_t)' accessing 0 or more bytes at offsets [0, 32767] and [0, 32767] may overlap up to 65535 bytes at offset [98301, 32767] [-Wrestrict] strncpy(writeTo, buffer + index + count,len - index); ``` ---
**Author:** ![algernon](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/algernon/32/4404_2.png) [@algernon](https://community.keyboard.io/u/algernon)\ **Post date:** [July 27, 2018, 6:17pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/2 "2018-07-27T18:17:32Z")
> [@hoschi](#): > > Is this something I can influence? If you are building from the commandline, add the following line to a `.kaleidoscope-builder.conf` file (in the same dir as your `Makefile`): ```auto LOCAL_CFLAGS="-DKALEIDOSCOPE_ENABLE_V1_PLUGIN_API=0" ``` If you are using the Arduino IDE, then edit `~/Arduino/hardware/keyboardio/avr/boards.txt`, find this line: ```auto model01.build.extra_flags={build.usb_flags} '-DKALEIDOSCOPE_HARDWARE_H="Kaleidoscope-Hardware-Model01.h"' ``` and replace it with this: ```auto model01.build.extra_flags={build.usb_flags} '-DKALEIDOSCOPE_HARDWARE_H="Kaleidoscope-Hardware-Model01.h"' '-DKALEIDOSCOPE_ENABLE_V1_PLUGIN_API=0' ``` ---
**Author:** ![hoschi](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/hoschi/32/899_2.png) [@hoschi](https://community.keyboard.io/u/hoschi)\ **Post date:** [July 28, 2018, 3:28pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/3 "2018-07-28T15:28:09Z")
@algernon > LOCAL\_CFLAGS=“-DKALEIDOSCOPE\_ENABLE\_V1\_PLUGIN\_API=0” solved the problem of legacy plugin API warnings, thanks. The one in `WString.cpp` still persists, can you help me with that too? ---
**Author:** ![algernon](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/algernon/32/4404_2.png) [@algernon](https://community.keyboard.io/u/algernon)\ **Post date:** [July 28, 2018, 6:41pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/4 "2018-07-28T18:41:13Z")
> [@hoschi](#): > > The one in `WString.cpp` still persists, can you help me with that too? That’s in Arduino core, and looks not relevant (we don’t use `String`, I believe). I think it is safe to ignore for now. Unless you do use it in your sketch… Out of curiosity, what version of Arduino are you using? ---
**Author:** ![hoschi](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/hoschi/32/899_2.png) [@hoschi](https://community.keyboard.io/u/hoschi)\ **Post date:** [July 29, 2018, 1:28pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/5 "2018-07-29T13:28:44Z")
> [@algernon](#): > > That’s in Arduino core, and looks not relevant (we don’t use `String` , I believe). I think it is safe to ignore for now. Unless you do use it in your sketch… Not that I know. > [@algernon](#): > > Out of curiosity, what version of Arduino are you using? How do I check that? ---
**Author:** ![algernon](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/algernon/32/4404_2.png) [@algernon](https://community.keyboard.io/u/algernon)\ **Post date:** [July 29, 2018, 6:24pm UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/6 "2018-07-29T18:24:49Z")
> [@hoschi](#): > > How do I check that? Start the Arduino IDE, and select `Help/About` from the menu. That should show the version somewhere (likely near the top). ---
**Author:** ![hoschi](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.keyboard.io/hoschi/32/899_2.png) [@hoschi](https://community.keyboard.io/u/hoschi)\ **Post date:** [August 11, 2018, 8:38am UTC](https://community.keyboard.io/t/is-there-a-trick-to-remove-hide-the-legacy-api-notices/1850/7 "2018-08-11T08:38:52Z")
Arduino IDE says 1.8.5