Did you tried /File2String/File.txt
Also does you file exist.Take card that it case senstive.Means that File and file aren’t the same.
Also try with the complete path:
/mnt/sdcard/File2String/File.txt
Did you tried /File2String/File.txt
Also does you file exist.Take card that it case senstive.Means that File and file aren’t the same.
Also try with the complete path:
/mnt/sdcard/File2String/File.txt