Github user doanduyhai commented on the issue: https://github.com/apache/zeppelin/pull/1369 @AhyoungRyu > The ng-toast error message is still shown as @astroshim said in the above comment. How about adding some timeout property to the message? I knew that there is a timeout option for `ng-toast` but I chose not use it. The simple reason is that I consider the dependency issue is a **serious** issue so we want the user to **explicitly/manually** close the error popup and acknowledge that he is aware about the download issue. What is your opinion about that ? Adding a timeout to automatically close the error popup is very easy. > Need to show "Could not find artifact bbb:111.2.2.2 in central (http://repo1.maven.org/maven2/)" as well if we want to show the number of errors. There is a simple explanation for this. `sonatye.aether` library tries to download the dependencies **one after another** and raise an exception as soon as it cannot find/download a dependency. In your example, we'll see the error popup for the 2<sup>nd</sup> dependency if the download of the 1<sup>st</sup> is successful ```java synchronized (repos) { for (RemoteRepository repo : repos) { collectRequest.addRepository(repo); } } DependencyRequest dependencyRequest = new DependencyRequest(collectRequest, DependencyFilterUtils.andFilter(exclusionFilter, classpathFilter)); try { return system.resolveDependencies(session, dependencyRequest).getArtifactResults(); } catch (NullPointerException ex) { throw new RepositoryException(String.format("Cannot fetch dependencies for %s", dependency)); } ``` We cannot change the behavior of `sonatype.aether`. We can change our source code to download dependency **one by one** but it is very slow and require changing the interface of a lot of methods
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