diff --git a/cameraserver/multiCameraServer/src/main/native/cpp/main.cpp b/cameraserver/multiCameraServer/src/main/native/cpp/main.cpp
index 2cb1c890b8..2a87baa29f 100644
--- a/cameraserver/multiCameraServer/src/main/native/cpp/main.cpp
+++ b/cameraserver/multiCameraServer/src/main/native/cpp/main.cpp
@@ -8,6 +8,7 @@
 #include <thread>
 #include <vector>
 
+#include <fmt/core.h>
 #include <networktables/NetworkTableInstance.h>
 #include <wpi/StringExtras.h>
 #include <wpi/fmt/raw_ostream.h>
@@ -63,10 +64,6 @@ struct CameraConfig {
 
 std::vector<CameraConfig> cameras;
 
-wpi::raw_ostream& ParseError() {
-  return wpi::errs() << "config error in '" << configFile << "': ";
-}
-
 bool ReadCameraConfig(const wpi::json& config) {
   CameraConfig c;
 
@@ -74,7 +71,8 @@ bool ReadCameraConfig(const wpi::json& config) {
   try {
     c.name = config.at("name").get<std::string>();
   } catch (const wpi::json::exception& e) {
-    ParseError() << "could not read camera name: " << e.what() << '\n';
+    fmt::print(stderr, "config error in '{}': could not read camera name: {}\n",
+               configFile, e.what());
     return false;
   }
 
@@ -82,8 +80,9 @@ bool ReadCameraConfig(const wpi::json& config) {
   try {
     c.path = config.at("path").get<std::string>();
   } catch (const wpi::json::exception& e) {
-    ParseError() << "camera '" << c.name
-                 << "': could not read path: " << e.what() << '\n';
+    fmt::print(stderr,
+               "config error in '{}': camera '{}': could not read path: {}\n",
+               configFile, c.name, e.what());
     return false;
   }
 
@@ -98,8 +97,7 @@ bool ReadConfig() {
   std::error_code ec;
   wpi::raw_fd_istream is(configFile, ec);
   if (ec) {
-    wpi::errs() << "could not open '" << configFile << "': " << ec.message()
-                << '\n';
+    fmt::print(stderr, "could not open '{}': {}\n", configFile, ec.message());
     return false;
   }
 
@@ -108,13 +106,15 @@ bool ReadConfig() {
   try {
     j = wpi::json::parse(is);
   } catch (const wpi::json::parse_error& e) {
-    fmt::print(ParseError(), "byte {}: {}\n", e.byte, e.what());
+    fmt::print(stderr, "config error in '{}': byte {}: {}\n", configFile,
+               e.byte, e.what());
     return false;
   }
 
   // top level must be an object
   if (!j.is_object()) {
-    ParseError() << "must be JSON object\n";
+    fmt::print(stderr, "config error in '{}': must be JSON object\n",
+               configFile);
     return false;
   }
 
@@ -122,7 +122,8 @@ bool ReadConfig() {
   try {
     team = j.at("team").get<unsigned int>();
   } catch (const wpi::json::exception& e) {
-    ParseError() << "could not read team number: " << e.what() << '\n';
+    fmt::print(stderr, "config error in '{}': could not read team number: {}\n",
+               configFile, e.what());
     return false;
   }
 
@@ -135,10 +136,14 @@ bool ReadConfig() {
       } else if (wpi::equals_lower(str, "server")) {
         server = true;
       } else {
-        ParseError() << "could not understand ntmode value '" << str << "'\n";
+        fmt::print(
+            stderr,
+            "config error in '{}': could not understand ntmode value '{}'\n",
+            configFile, str);
       }
     } catch (const wpi::json::exception& e) {
-      ParseError() << "could not read ntmode: " << e.what() << '\n';
+      fmt::print(stderr, "config error in '{}': could not read ntmode: {}\n",
+                 configFile, e.what());
     }
   }
 
@@ -150,7 +155,8 @@ bool ReadConfig() {
       }
     }
   } catch (const wpi::json::exception& e) {
-    ParseError() << "could not read cameras: " << e.what() << '\n';
+    fmt::print(stderr, "config error in '{}': could not read cameras: {}\n",
+               configFile, e.what());
     return false;
   }
 
diff --git a/wpiutil/src/main/native/include/wpi/jni_util.h b/wpiutil/src/main/native/include/wpi/jni_util.h
index bc4488a795..31bdf93ed8 100644
--- a/wpiutil/src/main/native/include/wpi/jni_util.h
+++ b/wpiutil/src/main/native/include/wpi/jni_util.h
@@ -15,6 +15,8 @@
 #include <utility>
 #include <vector>
 
+#include <fmt/core.h>
+
 #include "wpi/ConvertUTF.h"
 #include "wpi/SafeThread.h"
 #include "wpi/SmallString.h"
@@ -158,8 +160,8 @@ class JStringRef {
         env->ReleaseStringCritical(str, chars);
       }
     } else {
-      errs() << "JStringRef was passed a null pointer at \n"
-             << GetJavaStackTrace(env);
+      fmt::print(stderr, "JStringRef was passed a null pointer at\n",
+                 GetJavaStackTrace(env));
     }
     // Ensure str is null-terminated.
     m_str.push_back('\0');
@@ -281,8 +283,8 @@ class JSpanBase {
         m_elements{static_cast<std::remove_cv_t<T>*>(
             bb ? env->GetDirectBufferAddress(bb) : nullptr)} {
     if (!bb) {
-      errs() << "JSpan was passed a null pointer at \n"
-             << GetJavaStackTrace(env);
+      fmt::print(stderr, "JSpan was passed a null pointer at\n",
+                 GetJavaStackTrace(env));
     }
   }
 
@@ -300,8 +302,8 @@ class JSpanBase {
         m_elements = ArrHelper::GetArrayElements(env, jarr);
       }
     } else {
-      errs() << "JSpan was passed a null pointer at \n"
-             << GetJavaStackTrace(env);
+      fmt::print(stderr, "JSpan was passed a null pointer at\n",
+                 GetJavaStackTrace(env));
     }
   }