diff --git a/compilation/package_dist.py b/compilation/package_dist.py
index e75b29d..451deba 100644
--- a/compilation/package_dist.py
+++ b/compilation/package_dist.py
@@ -417,7 +417,7 @@ def compile_nsis_installers():
         f"-DAPP_VERSION={vi_ver}",
         f"-DDISPLAY_VERSION={display_ver}"
     ]
-    success = True
+    failed_scripts = []
     for nsi in ["installer_client.nsi", "installer_server.nsi"]:
         nsi_path = os.path.join(compilation_dir, nsi)
         if os.path.exists(nsi_path):
@@ -426,9 +426,11 @@ def compile_nsis_installers():
                 subprocess.run(makensis_cmd + [nsi_path], cwd=compilation_dir, check=True)
                 print(f"[+] Successfully compiled NSIS installer for {nsi}")
             except Exception as e:
-                print(f"[!] Warning: Failed to compile {nsi} with {makensis_cmd}: {e}")
-                success = False
-    return success
+                print(f"[!] Error: Failed to compile {nsi} with {makensis_cmd}: {e}")
+                failed_scripts.append(nsi)
+    if failed_scripts:
+        raise RuntimeError(f"NSIS compilation failed for: {', '.join(failed_scripts)}")
+    return True
 
 
 def compile_inno_setup_installers():
@@ -459,6 +461,7 @@ def compile_inno_setup_installers():
     display_ver, vi_ver = get_context_version()
     write_version_headers(display_ver, vi_ver)
 
+    failed_scripts = []
     for iss in ["installer_client.iss", "installer_server.iss"]:
         iss_path = os.path.join(ROOT_DIR, "compilation", iss)
         if os.path.exists(iss_path):
@@ -467,12 +470,17 @@ def compile_inno_setup_installers():
                 subprocess.run(iscc_cmd + [f"/DAppVersion={display_ver}", iss_path], check=True)
                 print(f"[+] Successfully compiled {iss}")
             except Exception as e:
-                print(f"[!] Warning: Failed to compile {iss} with {iscc_cmd}: {e}")
+                print(f"[!] Error: Failed to compile {iss} with {iscc_cmd}: {e}")
+                failed_scripts.append(iss)
+    if failed_scripts:
+        raise RuntimeError(f"Inno Setup compilation failed for: {', '.join(failed_scripts)}")
     return True
 
 
 def compile_windows_installers():
-    if not compile_nsis_installers():
+    if ensure_makensis():
+        compile_nsis_installers()
+    else:
         compile_inno_setup_installers()
 
 
@@ -527,14 +535,14 @@ def build_windows():
         write_checksum_file("win_agent_sha256sum", client_hash, "Win_Client.exe")
         sums.append(f"{client_hash}  Win_Client.exe")
     else:
-        print(f"[!] Warning: Expected {client_bin} was not found.")
+        raise RuntimeError(f"Expected Windows client binary was not produced: {client_bin}")
 
     if os.path.exists(server_bin):
         server_hash = calculate_sha256(server_bin)
         write_checksum_file("win_server_sha256sum", server_hash, "Server.exe")
         sums.append(f"{server_hash}  Server.exe")
     else:
-        print(f"[!] Warning: Expected {server_bin} was not found.")
+        raise RuntimeError(f"Expected Windows server binary was not produced: {server_bin}")
 
     # Inno Setup output checksums if present
     for inst in ["LOGAR-Client-Setup.exe", "LOGAR-Server-Setup.exe", "LOGAR-Windows-Client.zip", "LOGAR-Windows-Server.zip"]:
@@ -621,14 +629,14 @@ def build_linux():
         write_checksum_file("linux_agent_sha256sum", client_hash, "Linux_Client.bin")
         sums.append(f"{client_hash}  Linux_Client.bin")
     else:
-        print(f"[!] Warning: Expected {client_bin} was not found.")
+        raise RuntimeError(f"Expected Linux client binary was not produced: {client_bin}")
 
     if os.path.exists(server_bin):
         server_hash = calculate_sha256(server_bin)
         write_checksum_file("linux_server_sha256sum", server_hash, "Server.bin")
         sums.append(f"{server_hash}  Server.bin")
     else:
-        print(f"[!] Warning: Expected {server_bin} was not found.")
+        raise RuntimeError(f"Expected Linux server binary was not produced: {server_bin}")
 
     for item in ["install_linux_client.sh", "install_linux_server.sh", "LOGAR-Linux-Client.tar.gz", "LOGAR-Linux-Server.tar.gz"]:
         item_path = os.path.join(DIST_DIR, item)