<!-- 
RSS generated by JIRA (9.12.2#9120002-sha1:301bf498dd45d800842af0b84230f1bb58606c13) at Sun Jan 12 12:15:46 UTC 2025

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<channel>
    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-7821] Cannot convert worlds</title>
                <link>https://bugs.mojang.com/browse/MC-7821</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I have a world from the generator before anvil but when i try to convert it it hangs on loading world converting world then crashes with no crash report&lt;/p&gt;</description>
                <environment>windows 7 64x bit java 7</environment>
        <key id="20633">MC-7821</key>
            <summary>Cannot convert worlds</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="eob2000">Ellis O&apos;Brien</reporter>
                        <labels>
                    </labels>
                <created>Fri, 18 Jan 2013 18:17:14 +0100</created>
                <updated>Wed, 31 Jul 2019 09:33:33 +0200</updated>
                            <resolved>Fri, 18 Jan 2013 21:53:35 +0100</resolved>
                                    <version>Snapshot 13w03a</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="571033" author="stuzie" created="Wed, 31 Jul 2019 09:33:33 +0200"  >&lt;p&gt;link -&#160;&lt;a href=&quot;https://bugs.mojang.com/browse/MCPE-47427&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://bugs.mojang.com/browse/MCPE-47427&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="429669" author="mhankerson" created="Thu, 18 Jan 2018 07:30:19 +0100"  >&lt;p&gt;My world is 240 mb and I still cannot convert it to the new version even after all these bug fixes please tell me how to do it I wanna experience the new version it crashes at 3%&lt;/p&gt;</comment>
                            <comment id="38022" author="bljat" created="Fri, 18 Jan 2013 21:53:35 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5672&quot; title=&quot;Crash when trying to convert an old world&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-5672&quot;&gt;&lt;del&gt;MC-5672&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="38014" author="kumasasa" created="Fri, 18 Jan 2013 21:42:08 +0100"  >&lt;p&gt;For convenience attached that world here.&lt;/p&gt;</comment>
                            <comment id="38013" author="kumasasa" created="Fri, 18 Jan 2013 21:40:53 +0100"  >&lt;p&gt;Confirmed with this world.&lt;/p&gt;

&lt;p&gt;Got a NPE in the console:&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;Jan 18, 2013 9:38:50 PM net.minecraft.server.MinecraftServer b
INFO: Converting map!
Scanning folders...
Total conversion count is 14
t: Reading NBT data
        at bq.f(SourceFile:136)
        at aaz.a(SourceFile:30)
        at ail.a(SourceFile:210)
        at ail.a(SourceFile:181)
        at ail.a(SourceFile:140)
        at net.minecraft.server.MinecraftServer.b(SourceFile:110)
        at bhc.a(SourceFile:54)
        at bhc.c(SourceFile:99)
        at net.minecraft.server.MinecraftServer.run(SourceFile:304)
        at gi.run(SourceFile:565)
Caused by: java.lang.ClassCastException: bx cannot be &lt;span class=&quot;code-keyword&quot;&gt;cast&lt;/span&gt; to bz
        at bq.f(SourceFile:134)
        ... 9 more
Jan 18, 2013 9:38:51 PM net.minecraft.server.MinecraftServer run
SEVERE: Encountered an unexpected exception t
t: Reading NBT data
        at bq.f(SourceFile:136)
        at aaz.a(SourceFile:30)
        at ail.a(SourceFile:210)
        at ail.a(SourceFile:181)
        at ail.a(SourceFile:140)
        at net.minecraft.server.MinecraftServer.b(SourceFile:110)
        at bhc.a(SourceFile:54)
        at bhc.c(SourceFile:99)
        at net.minecraft.server.MinecraftServer.run(SourceFile:304)
        at gi.run(SourceFile:565)
Caused by: java.lang.ClassCastException: bx cannot be &lt;span class=&quot;code-keyword&quot;&gt;cast&lt;/span&gt; to bz
        at bq.f(SourceFile:134)
        ... 9 more

Jan 18, 2013 9:38:51 PM net.minecraft.server.MinecraftServer run
SEVERE: This crash report has been saved to: C:\Users\user\AppData\Roaming\.minecraft\crash-reports\crash-2
Jan 18, 2013 9:38:51 PM net.minecraft.server.MinecraftServer k
INFO: Stopping server
Jan 18, 2013 9:38:51 PM net.minecraft.server.MinecraftServer k
INFO: Saving players
Jan 18, 2013 9:38:51 PM net.minecraft.server.MinecraftServer k
INFO: Saving worlds
java.lang.NullPointerException
        at net.minecraft.server.MinecraftServer.a(SourceFile:250)
        at net.minecraft.server.MinecraftServer.k(SourceFile:274)
        at bhc.k(SourceFile:219)
        at net.minecraft.server.MinecraftServer.run(SourceFile:362)
        at gi.run(SourceFile:565)
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;That may be an issue with only &lt;b&gt;this&lt;/b&gt; specific world, because the report says:&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;-- Corrupt NBT tag --
Details:
	Tag type found: INT
	Tag type expected: LONG
	Tag name: LastUpdate
	Tag parent: Level
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
</comment>
                            <comment id="38011" author="eob2000" created="Fri, 18 Jan 2013 21:35:47 +0100"  >&lt;p&gt;The map was CNB Minecraft&apos;s minecart station v1.0 download here &lt;a href=&quot;http://www.mediafire.com/?zo8gp4z58rakv2y&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.mediafire.com/?zo8gp4z58rakv2y&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="37992" author="tulir293" created="Fri, 18 Jan 2013 21:01:08 +0100"  >&lt;p&gt;If I&apos;m not totally wrong, I&apos;m pretty sure that theres a crash-reports folder in .minecraft. The crash report might be there, so if you haven&apos;t already, check that.&lt;/p&gt;</comment>
                            <comment id="37975" author="bugi74" created="Fri, 18 Jan 2013 20:35:35 +0100"  >&lt;p&gt;Might be helpful if such a world save could be downloaded from somewhere for testing (that is, if you have an account in a file sharing service which allows uploading and sharing zip files, upload the zipped world save in there). Without any means to test and not even crash report, it is near impossible to debug an issue like that.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="18315">MC-5672</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="19087" name="CNBsStationinabox.rar" size="6770950" author="kumasasa" created="Fri, 18 Jan 2013 21:42:08 +0100"/>
                            <attachment id="19088" name="crash-2013-01-18_21.38.51-server.txt" size="1891" author="kumasasa" created="Fri, 18 Jan 2013 21:44:53 +0100"/>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                                                                                                                                <customfield id="customfield_10701" key="com.atlassian.jira.plugin.system.customfieldtypes:datetime">
                        <customfieldname>CHK</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>Sat, 2 May 2015 03:38:00 +0200</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                            <customfield id="customfield_10500" key="com.atlassian.jira.plugin.system.customfieldtypes:radiobuttons">
                        <customfieldname>Confirmation Status</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue key="10303"><![CDATA[Confirmed]]></customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                        <customfield id="customfield_11700" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_11100" key="com.atlassian.jira.plugin.system.customfieldtypes:float">
                        <customfieldname>Linked</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                <customfield id="customfield_11600" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>0|i0iufb:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                    </customfields>
    </item>
</channel>
</rss>