OSX10.10—JavaRunTimeEnvironment Problem
Posted: Sat Oct 24, 2015 4:03 am
This tied me up for 5 or 6 hrs. I use 2 Macs in different locations to work on Ringo. The iMac on my desk does NOT evidence this problem, but my MacBook [portable, obviously] did: Suddenly yesterday whenever I tried to open Arduino.app directly or a sketch file, my MacBook displayed "Cannot open Java RunTime Environment". The files I was trying to open were all ones I had previously compiled, uploaded and successfully ran in Ringo.
After hours of searching, I determined that the JavaAppletPlugin had been automatically updated by Java/Oracle from 1.8.0_60 to 1.8.0_65 on my MacBook but not on my iMac. This is the ONLY DIFFERENCE I could find.
I reinstalled Java, Arduino, FDTIDriver, etc. Lo and behold, Arduino.app opened and seemed normal. I QUIT and tried to open another sketch — and got the "Cannot open Java RunTime Environment" error again.
Then I remembered that after quitting the first sketch, I moved the app to my Applications folder, which seemed a logical place for it. I moved the app back to the Downloads folder, it worked. Then to Documents>Arduino, and it also worked. So, presently the Arduino.app launches OK from anywhere but the Applications folder.
HUH??? I dont plan to upgrade the Javaplugin on my iMac!!
After hours of searching, I determined that the JavaAppletPlugin had been automatically updated by Java/Oracle from 1.8.0_60 to 1.8.0_65 on my MacBook but not on my iMac. This is the ONLY DIFFERENCE I could find.
I reinstalled Java, Arduino, FDTIDriver, etc. Lo and behold, Arduino.app opened and seemed normal. I QUIT and tried to open another sketch — and got the "Cannot open Java RunTime Environment" error again.
Then I remembered that after quitting the first sketch, I moved the app to my Applications folder, which seemed a logical place for it. I moved the app back to the Downloads folder, it worked. Then to Documents>Arduino, and it also worked. So, presently the Arduino.app launches OK from anywhere but the Applications folder.
HUH??? I dont plan to upgrade the Javaplugin on my iMac!!