"type-annotation"><a href="dart-core/String-class.html">String</a></span> <span class="parameter-name">message</span> = <span class="default-value">""</span>, </span> <span class="parameter" id="-param-path"><span class="type-annotation"><a href="dart-core/String-class.html">String</a></span> <span class="parameter-name">path</span> = <span class="default-value">""</span>, </span> <span class="parameter" id="-param-osError"><span class="type-annotation"><a href="dart-io/OSError-class.html">OSError</a></span