Arduino Due board manage problems

Hi All

Everything was until my Arduino board Due disappeared from Board manager option, getting the following error, need guidance.

Thanks in advance

Error downloading http://downloads.arduino.cc/packages/package_index.json
java.lang.RuntimeException: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json
at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onUpdatePressed$1(ContributionManagerUI.java:150)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json
at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:139)
at cc.arduino.contributions.packages.ContributionInstaller.download(ContributionInstaller.java:333)
at cc.arduino.contributions.packages.ContributionInstaller.downloadIndexAndSignature(ContributionInstaller.java:307)
at cc.arduino.contributions.packages.ContributionInstaller.updateIndex(ContributionInstaller.java:285)
at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onUpdatePressed$1(ContributionManagerUI.java:146)
... 1 more
Caused by: java.nio.file.FileSystemException: C:\Users\TVSAUTOMATION\AppData\Local\Arduino15\package_index.json.tmp: The process cannot access the file because it is being used by another process.

at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:86)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
at sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:269)
at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
at java.nio.file.Files.delete(Files.java:1126)
at cc.arduino.utils.network.FileDownloader.downloadFile(FileDownloader.java:156)
at cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:132)
at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:137)
... 5 more
Index error: could not find referenced tool name=avr-gcc version=4.8.1-arduino5 packager=arduino
Index error: could not find referenced tool name=avrdude version=6.0.1-arduino5 packager=arduino
Index error: could not find referenced tool name=avr-gcc version=4.8.1-arduino5 packager=arduino
Index error: could not find referenced tool name=avrdude version=6.0.1-arduino5 packager=arduino
Index error: could not find referenced tool name=avr-gcc version=4.8.1-arduino5 packager=arduino

Try this:

  • Click the link at the line following File > Preferences > More preferences can be edited directly in the file. This will open the C:\Users\TVSAUTOMATION\AppData\Local\Arduino15 folder.
  • Delete all files in that folder other than preferences.txt.
  • Tools > Board > Boards Manager
  • Wait for the download to finish
  • Click "Close"

After doing that hopefully the Due will show back up in the Tools > Board menu. If not, let us know.

Thanks a lot pert.

It worked, grateful to you.

I'm glad to hear it. Enjoy!
Per