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<div class="section" id="log-files">
<h1>Log Files<a class="headerlink" href="#log-files" title="Permalink to this headline">¶</a></h1>
<p>Logfiles are an essential part when it comes to debugging your server and figuring what went wrong. This pages contains
logfiles from SpongeForge and SpongeVanilla servers including short descriptions.</p>
<div class="contents local topic" id="provided-logfiles">
<p class="topic-title first"><strong>Provided Logfiles</strong></p>
<ul class="simple">
<li><a class="reference internal" href="#spongeforge-logfiles" id="id2">SpongeForge logfiles</a><ul>
<li><a class="reference internal" href="#fml-junk-earlystartup-log" id="id3">fml-junk-earlystartup.log</a></li>
<li><a class="reference internal" href="#fml-server-latest-log" id="id4">fml-server-latest.log</a></li>
<li><a class="reference internal" href="#latest-log" id="id5">latest.log</a></li>
</ul>
</li>
<li><a class="reference internal" href="#spongevanilla-logfiles" id="id6">SpongeVanilla logfiles</a><ul>
<li><a class="reference internal" href="#id1" id="id7">latest.log</a></li>
</ul>
</li>
<li><a class="reference internal" href="#reading-logfiles" id="id8">Reading logfiles</a></li>
<li><a class="reference internal" href="#common-errors" id="id9">Common errors</a></li>
</ul>
</div>
<div class="section" id="spongeforge-logfiles">
<h2><a class="toc-backref" href="#id2">SpongeForge logfiles</a><a class="headerlink" href="#spongeforge-logfiles" title="Permalink to this headline">¶</a></h2>
<p>SpongeForge writes several logfiles to the <code class="docutils literal"><span class="pre">/logs</span></code> folder located inside your servers directory. As of Forge 1521
these are:</p>
<ol class="arabic simple">
<li><code class="docutils literal"><span class="pre">fml-junk-earlystartup.log</span></code></li>
<li><code class="docutils literal"><span class="pre">fml-server-latest.log</span></code></li>
<li><code class="docutils literal"><span class="pre">latest.log</span></code></li>
</ol>
<div class="section" id="fml-junk-earlystartup-log">
<h3><a class="toc-backref" href="#id3">fml-junk-earlystartup.log</a><a class="headerlink" href="#fml-junk-earlystartup-log" title="Permalink to this headline">¶</a></h3>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Only a few example lines are shown here. To read the full example log, follow this link:
<a class="reference download internal" href="../../_downloads/forge-1521-fml-junk-earlystartup.txt" download=""><code class="xref download docutils literal"><span class="pre">SpongeForge</span> <span class="pre">1521</span> <span class="pre">fml-junk-earlystartup.log</span> <span class="pre">file</span></code></a></p>
</div>
</div>
<div class="section" id="fml-server-latest-log">
<h3><a class="toc-backref" href="#id4">fml-server-latest.log</a><a class="headerlink" href="#fml-server-latest-log" title="Permalink to this headline">¶</a></h3>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Only a few example lines are shown here. To read the full example log, follow this link:
<a class="reference download internal" href="../../_downloads/forge-1521-fml-server-latest.txt" download=""><code class="xref download docutils literal"><span class="pre">SpongeForge</span> <span class="pre">1521</span> <span class="pre">fml-server-latest.log</span></code></a></p>
</div>
<div class="highlight-none"><div class="highlight"><pre><span></span>[main/INFO] [FML/]: Forge Mod Loader version 11.14.3.1521 for Minecraft 1.8 loading
[main/INFO] [FML/]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 8.1:amd64:6.3, installed at ##PATH_TO_JAVA_HERE##
[main/DEBUG] [FML/]: Java classpath at launch is forge.jar
[main/DEBUG] [FML/]: Java library path at launch is ##PATH_TO_JAVA_HERE##
</pre></div>
</div>
<p>The example log indicates that we’re running:</p>
<ul class="simple">
<li>Forge 11.14.3.1521 (Version 1521)</li>
<li>Java 8 64bit Update 51</li>
<li>Windows 8.1 x64</li>
<li>the <code class="docutils literal"><span class="pre">directory</span></code> Java was installed to (Line 4)</li>
</ul>
<div class="admonition warning">
<p class="first admonition-title">Warning</p>
<p class="last">SpongeForge won’t run on Java 6 (<code class="docutils literal"><span class="pre">1.6.x</span></code>) or Java 7 (<code class="docutils literal"><span class="pre">1.7.x</span></code>). If you encounter an error stating that you run
an older Java build than Java 8, please update your JRE to <code class="docutils literal"><span class="pre">1.8.x</span></code> and try again!</p>
</div>
<div class="highlight-none"><div class="highlight"><pre><span></span>[main/DEBUG] [FML/]: Examining for coremod candidacy spongeforge-1.8-1521-2.1-DEV-750.jar
[main/INFO] [FML/]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from spongeforge-1.8-1521-2.1-DEV-750.jar
</pre></div>
</div>
<p>This indicates that SpongeForge 750 was found and loaded by Forge. For further help regarding the SpongeForge
naming scheme, have a look here: <a class="reference internal" href="../getting-started/implementations/spongeforge.html"><span class="doc">Installing SpongeForge</span></a>.</p>
</div>
<div class="section" id="latest-log">
<h3><a class="toc-backref" href="#id5">latest.log</a><a class="headerlink" href="#latest-log" title="Permalink to this headline">¶</a></h3>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Only a few example lines are shown here. To read the full example log, follow this link:
<a class="reference download internal" href="../../_downloads/forge-1521-latest.txt" download=""><code class="xref download docutils literal"><span class="pre">SpongeForge</span> <span class="pre">1521</span> <span class="pre">latest.log</span></code></a></p>
</div>
<p>This is the output that you would see in the Minecraft server GUI.</p>
</div>
</div>
<div class="section" id="spongevanilla-logfiles">
<h2><a class="toc-backref" href="#id6">SpongeVanilla logfiles</a><a class="headerlink" href="#spongevanilla-logfiles" title="Permalink to this headline">¶</a></h2>
<div class="section" id="id1">
<h3><a class="toc-backref" href="#id7">latest.log</a><a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Only a few example lines are shown here. To read the full example log, follow this link:
<a class="reference download internal" href="../../_downloads/vanilla-47-latest.txt" download=""><code class="xref download docutils literal"><span class="pre">SpongeVanilla</span> <span class="pre">47</span> <span class="pre">latest.log</span></code></a></p>
</div>
<p>This is the output that you would see in the Minecraft server GUI.</p>
</div>
</div>
<div class="section" id="reading-logfiles">
<h2><a class="toc-backref" href="#id8">Reading logfiles</a><a class="headerlink" href="#reading-logfiles" title="Permalink to this headline">¶</a></h2>
<p>If you’re unsure on how to read a common crashlog, you’ll find help here, but first we need a crashlog. For this short
introduction we will just use an example crash from the <a class="reference internal" href="debugging.html"><span class="doc">Debugging</span></a> page:
<a class="reference download internal" href="../../_downloads/crashlog-sponge575-plugin750.txt" download=""><code class="xref download docutils literal"><span class="pre">Example</span> <span class="pre">crashlog</span> <span class="pre">of</span> <span class="pre">an</span> <span class="pre">outdated</span> <span class="pre">SpongeForge</span> <span class="pre">build</span></code></a>.</p>
<div class="highlight-none"><div class="highlight"><pre><span></span>WARNING: coremods are present:
SpongeCoremod (sponge-1.8-1499-2.1DEV-575.jar)
Contact their authors BEFORE contacting forge
</pre></div>
</div>
<p>The first thing you’ll notice is a <code class="docutils literal"><span class="pre">Warning</span></code> that coremods are present. Nothing to worry about here, that’s not an
error, just a warning to contact Sponge support, not Forge.</p>
<div class="highlight-none"><div class="highlight"><pre><span></span>java.lang.NoClassDefFoundError: org/spongepowered/api/event/game/state/GameStartingServerEvent
</pre></div>
</div>
<p>A few lines below the actual error is found. In this case it’s a <code class="docutils literal"><span class="pre">NoClassDefFoundError</span></code> If you’re unsure what that
means, head over to our <a class="reference internal" href="debugging.html"><span class="doc">Debugging</span></a> page. If it’s a common error, it will be listed there. If it isn’t, you can
always ask on the forums for help! Make sure you provide the full crashlog.</p>
<p>Luckily your systems details are included at the bottom of the crashlog:</p>
<div class="highlight-none"><div class="highlight"><pre><span></span>Minecraft Version: 1.8
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 515666256 bytes (491 MB) / 782761984 bytes (746 MB) up to 1847590912 bytes (1762 MB)
JVM Flags: 0 total;
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1521 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UC mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UC FML{8.0.99.99} [Forge Mod Loader] (forge.jar)
UC Forge{11.14.3.1521} [Minecraft Forge] (forge.jar)
UC Sponge{1.8-1499-2.1DEV-575} [SpongeForge] (minecraft.jar)
U Core{unknown} [Core Plugin] (Core.jar)
Loaded coremods (and transformers):
SpongeCoremod (sponge-1.8-1499-2.1DEV-575.jar)
</pre></div>
</div>
<p>This indicates that</p>
<ul>
<li><p class="first">Minecraft 1.8 with Forge 1521 was running on</p>
</li>
<li><p class="first">Java 8 Update 51 (64bit version) and that</p>
</li>
<li><p class="first">2 additional mods were installed</p>
<blockquote>
<div><ul class="simple">
<li>SpongeForge 1.8-1499-2.1DEV-575 (which is build #575) and</li>
<li>Core</li>
</ul>
</div></blockquote>
</li>
</ul>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Please note that the other three installed mods (mcp, FML, Forge) are required on every Forge server and necessary to
run properly.</p>
</div>
<p>Now the following assumptions can be made:</p>
<ul class="simple">
<li>maybe the plugin crashed the server</li>
<li>SpongeForge doesn’t match the Forge version: 1499 required, 1521 installed</li>
</ul>
<p>If you want to know how to solve this, head over to our checklist on the <a class="reference internal" href="debugging.html"><span class="doc">Debugging</span></a> page.</p>
</div>
<div class="section" id="common-errors">
<h2><a class="toc-backref" href="#id9">Common errors</a><a class="headerlink" href="#common-errors" title="Permalink to this headline">¶</a></h2>
<p>Head over to <a class="reference internal" href="debugging.html"><span class="doc">Debugging</span></a> to read about common errors and exceptions.</p>
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