[Android] Unable to create external cache directory error
Tadashi Shigeoka · Wed, April 3, 2013
In Android, I encountered an “Unable to create external cache directory” error.
The cause was that I hadn’t written the WRITE_EXTERNAL_STORAGE permission in AndroidManifest.xml.
[Reference]
・android - How to create directory automatically on SD card - Stack Overflow
That’s all from the Gemba.