Error downloading new libraries

janeshle · June 16, 2023, 8:13am

I'm using Arduino 1.8.19 and when I try to download some libraries I always get an error downloading https://downloads.arduino.cc//libraries/library_index.json

b707 · June 16, 2023, 10:02am

Please describe in detail how did you try to download it - and show real links and error messages.

janeshle · June 16, 2023, 10:04am

 Error downloading https://downloads.arduino.cc/libraries/library_index.json
java.lang.RuntimeException: java.lang.Exception: Error downloading https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:210)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Exception: Error downloading https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:149)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:130)
	at cc.arduino.contributions.JsonDownloader.download(JsonDownloader.java:49)
	at cc.arduino.contributions.GZippedJsonDownloader.download(GZippedJsonDownloader.java:66)
	at cc.arduino.contributions.libraries.LibraryInstaller.updateIndex(LibraryInstaller.java:84)
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:203)
	... 1 more
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1199)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
	at cc.arduino.utils.network.HttpConnectionManager.makeConnection(HttpConnectionManager.java:155)
	at cc.arduino.utils.network.HttpConnectionManager.makeConnection(HttpConnectionManager.java:106)
	at cc.arduino.utils.network.FileDownloaderCache.updateCacheInfo(FileDownloaderCache.java:184)
	at cc.arduino.utils.network.FileDownloaderCache.getFileCached(FileDownloaderCache.java:153)
	at cc.arduino.utils.network.FileDownloader.downloadFile(FileDownloader.java:167)
	at cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:129)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:147)
	... 6 more
 Error downloading https://downloads.arduino.cc/libraries/library_index.json
java.lang.RuntimeException: java.lang.Exception: Error downloading https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:210)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Exception: Error downloading https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:149)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:130)
	at cc.arduino.contributions.JsonDownloader.download(JsonDownloader.java:49)
	at cc.arduino.contributions.GZippedJsonDownloader.download(GZippedJsonDownloader.java:66)
	at cc.arduino.contributions.libraries.LibraryInstaller.updateIndex(LibraryInstaller.java:84)
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:203)
	... 1 more
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1199)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
	at cc.arduino.utils.network.HttpConnectionManager.makeConnection(HttpConnectionManager.java:155)
	at cc.arduino.utils.network.HttpConnectionManager.makeConnection(HttpConnectionManager.java:106)
	at cc.arduino.utils.network.FileDownloaderCache.updateCacheInfo(FileDownloaderCache.java:184)
	at cc.arduino.utils.network.FileDownloaderCache.getFileCached(FileDownloaderCache.java:153)
	at cc.arduino.utils.network.FileDownloader.downloadFile(FileDownloader.java:167)
	at cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:129)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:147)
	... 6 more

janeshle · June 16, 2023, 10:05am

i also try installing 1.8.16 version of arduino ide but still gets error

janeshle · June 16, 2023, 10:12am

I download it using manage libraries then search but it says error downloading

TomGeorge · June 16, 2023, 10:15am

Hi,
You do have the internet connected?

Tom..

janeshle · June 16, 2023, 10:15am

yes sir Error downloading https://downloads.arduino.cc/packages/package_index.json

smetuino · July 16, 2023, 5:37am

Yes, I confirm, same problem, started on 10-12.7. apx.
First on desktop, two days later also on laptop. Something is wrong from arduino maker side. Maybe finished some agreement with Oracle?! I didn't find answer.

Exception in thread "Thread-15" java.lang.NumberFormatException: For input string: ""
	at java.lang.NumberFormatException.forInputString(Unknown Source)
	at java.lang.Long.parseLong(Unknown Source)
	at java.lang.Long.parseLong(Unknown Source)
	at processing.app.UpdateCheck.run(UpdateCheck.java:72)
	at java.lang.Thread.run(Unknown Source)
Chyba stahování https://downloads.arduino.cc/libraries/library_index.json
Chyba stahování https://downloads.arduino.cc/packages/package_index.json
 Chyba stahování https://downloads.arduino.cc/libraries/library_index.json
java.lang.RuntimeException: java.lang.Exception: Chyba stahování https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:210)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.Exception: Chyba stahování https://downloads.arduino.cc/libraries/library_index.json
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:145)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:126)
	at cc.arduino.contributions.JsonDownloader.download(JsonDownloader.java:49)
	at cc.arduino.contributions.GZippedJsonDownloader.download(GZippedJsonDownloader.java:66)
	at cc.arduino.contributions.libraries.LibraryInstaller.updateIndex(LibraryInstaller.java:80)
	at cc.arduino.contributions.libraries.ui.LibraryManagerUI.lambda$onUpdatePressed$2(LibraryManagerUI.java:203)
	... 1 more
Caused by: java.lang.NumberFormatException: For input string: ""
	at java.lang.NumberFormatException.forInputString(Unknown Source)
	at java.lang.Long.parseLong(Unknown Source)
	at java.lang.Long.parseLong(Unknown Source)
	at cc.arduino.utils.network.HttpConnectionManager.<init>(HttpConnectionManager.java:87)
	at cc.arduino.utils.network.FileDownloaderCache.updateCacheInfo(FileDownloaderCache.java:164)
	at cc.arduino.utils.network.FileDownloaderCache.getFileCached(FileDownloaderCache.java:138)
	at cc.arduino.utils.network.FileDownloader.downloadFile(FileDownloader.java:162)
	at cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:125)
	at cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:143)
	... 6 more
Chyba stahování https://downloads.arduino.cc/libraries/library_index.json
Chyba stahování https://downloads.arduino.cc/packages/package_index.json

Delta_G · July 16, 2023, 7:42am

Either internet isn't connected or something is blocking the connection.

MiroSmet · August 7, 2023, 10:22am

Hello after a long time.
So unfortunately I couldn't find what was blocking the library update.
Finally I completely removed the Arduino IDE, including the drivers and all the windows registry entries.
Then I reinstalled everything, separately Java, then Arduino IDE, then platforms, and finally libraries.
Now I'm back up and running like I was in my youth.
I was a little worried, because I've been using the Arduino IDE since 2010 - roughly. That's a lot of projects, some libraries modified by myself.
Well, in the end it didn't hurt, it was a two-hour job.
So if any of you encounter something like this, don't waste time looking for the cause and rather invest the time in a precise backup and opt for a complete reinstall straight away. So I just hope that it will work again for some ten years without any problems.
Thanks for your attention.

SOLVED

system · February 3, 2024, 10:23am

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