Added some obvious errors explanations

5 files changed, 7 insertions, 7 deletions

diff --git a/modules/mono/class_db_api_json.cpp b/modules/mono/class_db_api_json.cpp
index 7580911a0a..bbc779601e 100644
--- a/modules/mono/class_db_api_json.cpp
+++ b/modules/mono/class_db_api_json.cpp
@@ -236,7 +236,7 @@ void class_db_api_to_json(const String &p_output_file, ClassDB::APIType p_api) {
 	}
 
 	FileAccessRef f = FileAccess::open(p_output_file, FileAccess::WRITE);
-	ERR_FAIL_COND(!f);
+	ERR_FAIL_COND_MSG(!f, "Cannot open file '" + p_output_file + "'.");
 	f->store_string(JSON::print(classes_dict, /*indent: */ "\t"));
 	f->close();
 
diff --git a/modules/mono/csharp_script.cpp b/modules/mono/csharp_script.cpp
index e14e919f92..83be10dee3 100644
--- a/modules/mono/csharp_script.cpp
+++ b/modules/mono/csharp_script.cpp
@@ -1195,7 +1195,7 @@ void CSharpLanguage::release_script_gchandle(MonoObject *p_expected_obj, Ref<Mon
 
 CSharpLanguage::CSharpLanguage() {
 
-	ERR_FAIL_COND(singleton);
+	ERR_FAIL_COND_MSG(singleton, "C# singleton already exist.");
 	singleton = this;
 
 	finalizing = false;
@@ -3242,7 +3242,7 @@ RES ResourceFormatLoaderCSharpScript::load(const String &p_path, const String &p
 
 #if defined(DEBUG_ENABLED) || defined(TOOLS_ENABLED)
 	Error err = script->load_source_code(p_path);
-	ERR_FAIL_COND_V(err != OK, RES());
+	ERR_FAIL_COND_V_MSG(err != OK, RES(), "Cannot load C# script file '" + p_path + "'.");
 #endif
 
 	script->set_path(p_original_path);
@@ -3325,7 +3325,7 @@ Error ResourceFormatSaverCSharpScript::save(const String &p_path, const RES &p_r
 
 	Error err;
 	FileAccess *file = FileAccess::open(p_path, FileAccess::WRITE, &err);
-	ERR_FAIL_COND_V(err, err);
+	ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot save C# script file '" + p_path + "'.");
 
 	file->store_string(source);
 
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index 1888bb3cb9..e98db02d66 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -868,7 +868,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_proj_dir, Vect
 
 	if (!DirAccess::exists(p_proj_dir)) {
 		Error err = da->make_dir_recursive(p_proj_dir);
-		ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
+		ERR_FAIL_COND_V_MSG(err != OK, ERR_CANT_CREATE, "Cannot create directory '" + p_proj_dir + "'.");
 	}
 
 	da->change_dir(p_proj_dir);
diff --git a/modules/mono/mono_gd/gd_mono_log.cpp b/modules/mono/mono_gd/gd_mono_log.cpp
index 5a0d728953..52f9eac638 100644
--- a/modules/mono/mono_gd/gd_mono_log.cpp
+++ b/modules/mono/mono_gd/gd_mono_log.cpp
@@ -104,7 +104,7 @@ void GDMonoLog::_delete_old_log_files(const String &p_logs_dir) {
 	ERR_FAIL_COND(!da);
 
 	Error err = da->change_dir(p_logs_dir);
-	ERR_FAIL_COND(err != OK);
+	ERR_FAIL_COND_MSG(err != OK, "Cannot change directory to '" + p_logs_dir + "'.");
 
 	ERR_FAIL_COND(da->list_dir_begin() != OK);
 
diff --git a/modules/mono/utils/string_utils.cpp b/modules/mono/utils/string_utils.cpp
index ae5a2cde81..3557e8de3a 100644
--- a/modules/mono/utils/string_utils.cpp
+++ b/modules/mono/utils/string_utils.cpp
@@ -165,7 +165,7 @@ Error read_all_file_utf8(const String &p_path, String &r_content) {
 	PoolVector<uint8_t> sourcef;
 	Error err;
 	FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
-	ERR_FAIL_COND_V(err != OK, err);
+	ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot open file '" + p_path + "'.");
 
 	int len = f->get_len();
 	sourcef.resize(len + 1);