TryCatch tail functions

lib/utils/IOTools.dart

@@ -85,10 +85,12 @@ Stream<List<int>> tail(final File file) async* {
 
   Stream<Uint8List> _read() async* {
     while (pos < len) {
-      final bytesRead = await randomAccess.readInto(buf);
-      pos += bytesRead;
+      try {
+        final bytesRead = await randomAccess.readInto(buf);
+        pos += bytesRead;
 
-      yield buf.sublist(0, bytesRead);
+        yield buf.sublist(0, bytesRead);
+      } catch (E) {}
     }
   }
 
@@ -98,15 +100,22 @@ Stream<List<int>> tail(final File file) async* {
   // Step 2: wait for modify events and read more bytes from file
   await for (final event in file.watch(events: FileSystemEvent.modify)) {
     if ((event as FileSystemModifyEvent).contentChanged) {
-      len = await (randomAccess.length());
-      yield* _read();
+      try {
+        len = await (randomAccess.length());
+        yield* _read();
+      } catch (E) {}
     }
   }
 }
 
 void tailAndPrint(File file) {
-  tail(file).transform(utf8.decoder).transform(LineSplitter()).forEach((line) {
-    // Do something with the line that has been read, e.g. print it out...
-    print(line);
-  });
+  try {
+    tail(file)
+        .transform(utf8.decoder)
+        .transform(LineSplitter())
+        .forEach((line) {
+      // Do something with the line that has been read, e.g. print it out...
+      print(line);
+    });
+  } catch (E) {}
 }