My Arduino IDE is not getting started. It just crashes before opening up. I don't know what the problem is. It was working well enough before without any issues.
This is what I see after running the arduino_debug.exe in the command line
Note: I added a library (DHT) to work with my humidity and temperature sensor and since after then, this issue comes up. I tried to reinstall it like more than 7 times, but the issue still persists.
Please help me with it. Thanks.
The cause of the problem is that you have a corrupted library index file. The solution is to delete the file, which will force the Arduino IDE to download a (hopefully) uncorrupted fresh version from the Internet:
For anyone encountering this problem who is using an operating system other than Windows, the location of library_index.json is different:
On Linux:
/home/{username}/.arduino15 (a.k.a. ~/.arduino15)
On macOS:
/Users/{username}/Library/Arduino15
If using the Arduino IDE in portable mode:
{Arduino IDE installation folder}/portable
The issue of a corrupted library index file preventing the Arduino IDE from starting has been reported to the Arduino developers and they are already working on a fix:
Had same issue when migrating from Arduino IDE 1.8.2 to 1.8.9
In my case, deleting just the library_index.json was not enough but a good hint.
I did also delete the subdirectories of "packages" directory (boards which I downloaded- the ESP32 board and the ESP8266 board), and all files (not folders) in C:\Users\\AppData\Local\Arduino15\ except the preferences.txt
This solved the issue for me.
