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Windows install error 0x80070002 unable to install App
Yesterday I tried to install a Windows App via its built in App Store. Usually this works like a charm. This time the download seemed to succees (judged by the progress bar) but the installation failed with error 0x80070002; Googling (and Bing’ing) found various issues with kind of the same description, ranging from “download failed”…
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What to do in case of org.apache.spark.sql.catalyst.errors.package$TreeNodeException: Unresolved attributes
I’m currently gathering my first experiences with Apache Spark and in particular Spark SQL. While I was playing a bit with Spark SQL Joins I suddenly faced an exception like Exception in thread “main” org.apache.spark.sql.catalyst.errors.package$TreeNodeException: Unresolved attributes: foo. Followed by the parsed SQL statement etc … Well, in MySQL the error message would have been…
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How to ignore Maven build erros due to JavaDoc with Java 8
Java 8 is a bit more strict in JavaDoc parsing. This can lead to build failures in Maven when building the repo with warnings like: Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.7:jar (attach-javadocs) on project [projectname]: MavenReportException: Error while creating archive: Exit code: 1 – [path-to-file]:[linenumber]: warning: no description for @param Sure, the good solution would be…
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How to get List of Objects from deeper level in Json via GSON
Sometimes you get a quite nested Json response but the only thing you need is a list of classes in a certain branch of the Json document (like a response of Yahoo’s YQL query). Assume just the following json document: And the only thing you need is the fields array. A Java8 way to get…
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Java 8 Streams: Collecting items into a Map of (Key, Item)
Once in a while I come across the task where I have a list of Items that I want to filter and afterwards store in a map. Usually the key is a property of the Item: anItem.name -> anItem In the usual Java way this looked like the following: Nothing really special, but it somehow…
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How to rename a GIT tag
Once in a while (yet often enough) it happens that I have to change an already pushed git tag. Usually because I violated my own naming scheme. Yet I also somehow can’t keep the necesserry commands in mind: Basically it is just: copy/link newTag to oldTag, remove oldTag, delete remote oldTag. Also see the git…
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Windows Tomcat start failed command 127.0.0.1 could not be found
I just installed Tomcat 7 on my Windows machine and tried to fire it up through Netbeans. But instead of a running server, I just got an error message that command 127.0.0.1 could not be found (Localized error message: Der Befehl “127.0.0.1” ist entweder falsch geschrieben oder konnte nicht gefunden werden.). I remember that I…
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Epson XP-205 Scanner in Windows 8.1 – How to get it back to work
Now it’s time for a Epson XP-205 Scanner to work with Windows 8.1 It took me a while now to get the XP-205 scanner component to run on my new Windows 8.1 via WiFi: The problem is, that when you install the scan software, you might get a communication error telling you that the scanner…
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How to fix Twitter share button in WordPress’ Huge-IT Share buttons
I just tried the Huge-IT share plugin for wordpress and realized that the twitter share button seems to have a bug: When sharing, the tweet will not link back to the URL. Not cool :-/ Fix: changed the file (via edit plugin): wp-share-buttons/Front_end/share_front_end_view.php Now the URL is prepended with http and thus displayed in the…